Finish MVP and dockerize

apps/backend/fastapi/app/__init__.py

@@ -0,0 +1 @@
+"""FastAPI application for Resume Branches control plane."""

apps/backend/fastapi/app/api/deps.py

@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+from functools import lru_cache
+
+from fastapi import Depends, HTTPException, Request, status
+from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.config import get_settings
+from app.db.session import AsyncSessionLocal
+from dlib.auth import AuthenticatedUser, build_validator
+
+
+security_scheme = HTTPBearer(auto_error=False)
+
+
+async def get_db() -> AsyncSession:
+    async with AsyncSessionLocal() as session:
+        yield session
+
+
+@lru_cache(maxsize=1)
+def _validator():
+    settings = get_settings()
+    return build_validator(
+        issuer=settings.auth_oidc_issuer,
+        audience=settings.auth_oidc_audience,
+        disable=settings.auth_disable_verification,
+    )
+
+
+async def get_current_user(
+    credentials: HTTPAuthorizationCredentials | None = Depends(security_scheme),
+) -> AuthenticatedUser:
+    validator = _validator()
+    token = credentials.credentials if credentials else ""
+    try:
+        return await validator.validate(token)
+    except Exception as exc:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail=str(exc)
+        ) from exc

apps/backend/fastapi/app/api/router.py

@@ -0,0 +1,11 @@
+from __future__ import annotations
+
+from fastapi import APIRouter
+
+from app.api.routes import documents, versions, submissions, public
+
+api_router = APIRouter()
+api_router.include_router(documents.router)
+api_router.include_router(versions.router)
+api_router.include_router(submissions.router)
+api_router.include_router(public.router)

apps/backend/fastapi/app/api/routes/__init__.py

@@ -0,0 +1,3 @@
+from . import documents, versions, submissions, public
+
+__all__ = ["documents", "versions", "submissions", "public"]

apps/backend/fastapi/app/api/routes/documents.py

@@ -0,0 +1,52 @@
+from __future__ import annotations
+
+from fastapi import APIRouter, Depends, File, Form, HTTPException, UploadFile
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.api.deps import get_current_user, get_db
+from app.schemas import DocumentListResponse, DocumentResponse
+from app.services.documents import create_document, get_document, list_documents
+from dlib.auth import AuthenticatedUser
+
+
+router = APIRouter(prefix="/documents", tags=["documents"])
+
+
+@router.get("/", response_model=DocumentListResponse)
+async def list_user_documents(
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    documents = await list_documents(session, owner_id=user.sub)
+    payload = [DocumentResponse.model_validate(doc) for doc in documents]
+    return DocumentListResponse(items=payload)
+
+
+@router.get("/{document_id}", response_model=DocumentResponse)
+async def get_user_document(
+    document_id: str,
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    document = await get_document(session, owner_id=user.sub, document_id=document_id)
+    if not document:
+        raise HTTPException(status_code=404, detail="Document not found")
+    return DocumentResponse.model_validate(document)
+
+
+@router.post("/", response_model=DocumentResponse)
+async def upload_document(
+    title: str = Form(...),
+    description: str | None = Form(default=None),
+    file: UploadFile = File(...),
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    document = await create_document(
+        session,
+        owner_id=user.sub,
+        title=title,
+        description=description,
+        upload=file,
+    )
+    return DocumentResponse.model_validate(document)

apps/backend/fastapi/app/api/routes/public.py

@@ -0,0 +1,60 @@
+from __future__ import annotations
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.api.deps import get_current_user, get_db
+from app.core.config import get_settings
+from app.models import PublicAsset
+from app.schemas import PublicAssetLookupResponse, PublicAssetResponse, PublishRequest
+from app.services.publication import publish_version
+from dlib.auth import AuthenticatedUser
+
+
+router = APIRouter(prefix="/public", tags=["public"])
+
+
+@router.post("/publish", response_model=PublicAssetResponse)
+async def publish(
+    payload: PublishRequest,
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    asset = await publish_version(
+        session,
+        owner_id=user.sub,
+        version_id=payload.version_id,
+        submission_id=payload.submission_id,
+        slug=payload.slug,
+    )
+    if not asset:
+        raise HTTPException(status_code=404, detail="Version or submission not found")
+    return _response_from_asset(asset)
+
+
+@router.get("/{slug}", response_model=PublicAssetLookupResponse)
+async def get_public_asset(slug: str, session: AsyncSession = Depends(get_db)):
+    stmt = select(PublicAsset).where(
+        PublicAsset.slug == slug, PublicAsset.is_public.is_(True)
+    )
+    result = await session.execute(stmt)
+    asset = result.scalars().one_or_none()
+    if not asset:
+        raise HTTPException(status_code=404, detail="Asset not found")
+    return PublicAssetLookupResponse(asset=_response_from_asset(asset))
+
+
+def _response_from_asset(asset: PublicAsset) -> PublicAssetResponse:
+    settings = get_settings()
+    url = f"{settings.public_base_url.rstrip('/')}/cv/{asset.slug}"
+    return PublicAssetResponse(
+        id=asset.id,
+        slug=asset.slug,
+        artifact_key=asset.artifact_key,
+        is_public=asset.is_public,
+        created_at=asset.created_at,
+        version_id=asset.version_id,
+        submission_id=asset.submission_id,
+        url=url,
+    )

apps/backend/fastapi/app/api/routes/submissions.py

@@ -0,0 +1,56 @@
+from __future__ import annotations
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.api.deps import get_current_user, get_db
+from app.schemas import (
+    AiSuggestionRequest,
+    SubmissionCreateRequest,
+    SubmissionResponse,
+    SuggestionResponse,
+)
+from app.services.submissions import create_submission, request_ai_suggestions
+from dlib.auth import AuthenticatedUser
+
+
+router = APIRouter(prefix="/submissions", tags=["submissions"])
+
+
+@router.post("/", response_model=SubmissionResponse)
+async def create_submission_endpoint(
+    payload: SubmissionCreateRequest,
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    submission = await create_submission(
+        session,
+        owner_id=user.sub,
+        version_id=payload.version_id,
+        company_name=payload.company_name,
+        role_title=payload.role_title,
+        job_url=payload.job_url,
+        job_description=payload.job_description,
+    )
+    if not submission:
+        raise HTTPException(status_code=404, detail="Version not found")
+    return SubmissionResponse.model_validate(submission)
+
+
+@router.post("/{submission_id}/ai", response_model=list[SuggestionResponse])
+async def request_submissions_ai(
+    submission_id: str,
+    payload: AiSuggestionRequest,
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    suggestions = await request_ai_suggestions(
+        session,
+        owner_id=user.sub,
+        submission_id=submission_id,
+        job_description=payload.job_description,
+        focus_keywords=payload.focus_keywords,
+    )
+    if suggestions is None:
+        raise HTTPException(status_code=404, detail="Submission not found")
+    return [SuggestionResponse.model_validate(item) for item in suggestions]

apps/backend/fastapi/app/api/routes/versions.py

@@ -0,0 +1,31 @@
+from __future__ import annotations
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.api.deps import get_current_user, get_db
+from app.schemas import BranchCreateRequest, VersionResponse
+from app.services.versions import create_branch
+from dlib.auth import AuthenticatedUser
+
+
+router = APIRouter(prefix="/versions", tags=["versions"])
+
+
+@router.post("/branches", response_model=VersionResponse)
+async def create_version_branch(
+    payload: BranchCreateRequest,
+    session: AsyncSession = Depends(get_db),
+    user: AuthenticatedUser = Depends(get_current_user),
+):
+    version = await create_branch(
+        session,
+        owner_id=user.sub,
+        parent_version_id=payload.parent_version_id,
+        branch_name=payload.branch_name,
+        version_label=payload.version_label,
+        patches=payload.patches,
+    )
+    if not version:
+        raise HTTPException(status_code=404, detail="Parent version not found")
+    return VersionResponse.model_validate(version)

apps/backend/fastapi/app/core/config.py

@@ -0,0 +1,63 @@
+from __future__ import annotations
+
+from functools import lru_cache
+from typing import List
+
+from pydantic import Field, field_validator
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    project_name: str = "Resume Branches API"
+    api_prefix: str = "/api/v1"
+    environment: str = Field(default="local", alias="ENVIRONMENT")
+    database_url: str = Field(
+        default="postgresql+asyncpg://postgres:postgres@localhost:5432/resume_branches",
+        alias="DATABASE_URL",
+    )
+    cors_origins: List[str] = Field(
+        default_factory=lambda: ["http://localhost:3000"], alias="CORS_ORIGINS"
+    )
+
+    storage_bucket: str = Field(default="resume-branches", alias="MINIO_BUCKET")
+    storage_region: str = Field(default="us-east-1", alias="MINIO_REGION")
+    storage_endpoint_url: str | None = Field(
+        default="http://localhost:9900", alias="MINIO_ENDPOINT"
+    )
+    storage_access_key: str | None = Field(default=None, alias="MINIO_ROOT_USER")
+    storage_secret_key: str | None = Field(default=None, alias="MINIO_ROOT_PASSWORD")
+    storage_path_prefix: str = Field(default="artifacts/cv")
+
+    auth_oidc_issuer: str | None = Field(default=None, alias="AUTH_OIDC_ISSUER")
+    auth_oidc_audience: str | None = Field(default=None, alias="AUTH_OIDC_AUDIENCE")
+    auth_disable_verification: bool = Field(
+        default=True, alias="AUTH_DISABLE_VERIFICATION"
+    )
+
+    celery_broker_url: str = Field(
+        default="redis://localhost:6379/0", alias="CELERY_BROKER_URL"
+    )
+    celery_result_backend: str | None = Field(
+        default=None, alias="CELERY_RESULT_BACKEND"
+    )
+
+    public_base_url: str = Field(
+        default="https://cv.alves.world", alias="PUBLIC_BASE_URL"
+    )
+    publish_domain: str = Field(default="cv.alves.world", alias="CV_PUBLIC_DOMAIN")
+
+    class Config:
+        env_file = ".env"
+        extra = "ignore"
+
+    @field_validator("cors_origins", mode="before")
+    @classmethod
+    def _split_origins(cls, value):
+        if isinstance(value, str):
+            return [origin.strip() for origin in value.split(",") if origin.strip()]
+        return value
+
+
+@lru_cache(maxsize=1)
+def get_settings() -> Settings:
+    return Settings()  # type: ignore[arg-type]

apps/backend/fastapi/app/db/base.py

@@ -0,0 +1,8 @@
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+from app import models  # noqa: E402,F401

apps/backend/fastapi/app/db/session.py

@@ -0,0 +1,29 @@
+from __future__ import annotations
+
+from contextlib import asynccontextmanager
+
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+
+from app.core.config import get_settings
+from app.db.base import Base
+
+
+settings = get_settings()
+engine = create_async_engine(
+    settings.database_url, echo=settings.environment == "local", future=True
+)
+AsyncSessionLocal = async_sessionmaker(
+    bind=engine, expire_on_commit=False, class_=AsyncSession
+)
+
+
+@asynccontextmanager
+async def lifespan(app):  # pragma: no cover
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+    yield
+
+
+async def get_session() -> AsyncSession:
+    async with AsyncSessionLocal() as session:
+        yield session

apps/backend/fastapi/app/main.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.api.router import api_router
+from app.core.config import get_settings
+from app.db.session import lifespan
+
+
+settings = get_settings()
+app = FastAPI(title=settings.project_name, lifespan=lifespan)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=settings.cors_origins,
+    allow_methods=["*"],
+    allow_headers=["*"],
+    allow_credentials=True,
+)
+
+
+@app.get("/health")
+async def health():
+    return {"status": "ok"}
+
+
+app.include_router(api_router, prefix=settings.api_prefix)

apps/backend/fastapi/app/models/__init__.py

@@ -0,0 +1,21 @@
+from .cv import (
+    AiSuggestion,
+    CvDocument,
+    CvPatch,
+    CvVersion,
+    PublicAsset,
+    Specialization,
+    Submission,
+    SubmissionStatus,
+)
+
+__all__ = [
+    "CvDocument",
+    "CvVersion",
+    "CvPatch",
+    "Specialization",
+    "Submission",
+    "SubmissionStatus",
+    "PublicAsset",
+    "AiSuggestion",
+]

apps/backend/fastapi/app/models/cv.py

@@ -0,0 +1,152 @@
+from __future__ import annotations
+
+import enum
+
+from sqlalchemy import Boolean, DateTime, Enum, ForeignKey, String, Text
+from sqlalchemy.dialects.postgresql import JSONB
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.base import Base
+from app.models.mixins import IdentifierMixin, TimestampMixin
+
+
+class CvDocument(Base, IdentifierMixin, TimestampMixin):
+    __tablename__ = "cv_documents"
+
+    owner_id: Mapped[str] = mapped_column(String(255), index=True)
+    title: Mapped[str] = mapped_column(String(255))
+    description: Mapped[str | None] = mapped_column(Text, nullable=True)
+    root_version_id: Mapped[str | None] = mapped_column(
+        ForeignKey("cv_versions.id"), nullable=True
+    )
+
+    versions: Mapped[list["CvVersion"]] = relationship(
+        "CvVersion", back_populates="document"
+    )
+
+
+class CvVersion(Base, IdentifierMixin, TimestampMixin):
+    __tablename__ = "cv_versions"
+
+    document_id: Mapped[str] = mapped_column(
+        ForeignKey("cv_documents.id", ondelete="CASCADE")
+    )
+    parent_version_id: Mapped[str | None] = mapped_column(
+        ForeignKey("cv_versions.id"), nullable=True
+    )
+    branch_name: Mapped[str] = mapped_column(String(120), default="root")
+    version_label: Mapped[str | None] = mapped_column(String(120), nullable=True)
+    artifact_docx_key: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    preview_html_key: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    structured_blocks: Mapped[list[dict] | None] = mapped_column(JSONB, default=list)
+    metadata_json: Mapped[dict | None] = mapped_column(JSONB, default=dict)
+
+    document: Mapped[CvDocument] = relationship("CvDocument", back_populates="versions")
+    parent: Mapped["CvVersion" | None] = relationship(
+        "CvVersion", remote_side="CvVersion.id"
+    )
+    patches: Mapped[list["CvPatch"]] = relationship("CvPatch", back_populates="version")
+    submissions: Mapped[list["Submission"]] = relationship(
+        "Submission", back_populates="version"
+    )
+
+
+class CvPatch(Base, IdentifierMixin, TimestampMixin):
+    __tablename__ = "cv_patches"
+
+    version_id: Mapped[str] = mapped_column(
+        ForeignKey("cv_versions.id", ondelete="CASCADE")
+    )
+    target_path: Mapped[str] = mapped_column(String(255))
+    operation: Mapped[str] = mapped_column(String(64))
+    old_value: Mapped[str | None] = mapped_column(Text, nullable=True)
+    new_value: Mapped[str | None] = mapped_column(Text, nullable=True)
+    metadata_json: Mapped[dict | None] = mapped_column(JSONB, default=dict)
+
+    version: Mapped[CvVersion] = relationship("CvVersion", back_populates="patches")
+
+
+class Specialization(Base, IdentifierMixin, TimestampMixin):
+    __tablename__ = "specializations"
+
+    document_id: Mapped[str] = mapped_column(
+        ForeignKey("cv_documents.id", ondelete="CASCADE")
+    )
+    name: Mapped[str] = mapped_column(String(120))
+    description: Mapped[str | None] = mapped_column(Text, nullable=True)
+    based_on_version_id: Mapped[str | None] = mapped_column(
+        ForeignKey("cv_versions.id"), nullable=True
+    )
+    metadata_json: Mapped[dict | None] = mapped_column(JSONB, default=dict)
+
+
+class SubmissionStatus(str, enum.Enum):
+    draft = "draft"
+    tailoring = "tailoring"
+    pending_review = "pending_review"
+    published = "published"
+    archived = "archived"
+
+
+class Submission(Base, IdentifierMixin, TimestampMixin):
+    __tablename__ = "submissions"
+
+    version_id: Mapped[str] = mapped_column(
+        ForeignKey("cv_versions.id", ondelete="CASCADE")
+    )
+    company_name: Mapped[str] = mapped_column(String(160))
+    role_title: Mapped[str] = mapped_column(String(160))
+    job_url: Mapped[str | None] = mapped_column(String(512), nullable=True)
+    job_description: Mapped[str | None] = mapped_column(Text, nullable=True)
+    status: Mapped[SubmissionStatus] = mapped_column(
+        Enum(SubmissionStatus), default=SubmissionStatus.draft
+    )
+    metadata_json: Mapped[dict | None] = mapped_column(JSONB, default=dict)
+
+    version: Mapped[CvVersion] = relationship("CvVersion", back_populates="submissions")
+    suggestions: Mapped[list["AiSuggestion"]] = relationship(
+        "AiSuggestion", back_populates="submission"
+    )
+    public_asset: Mapped["PublicAsset" | None] = relationship(
+        "PublicAsset", back_populates="submission"
+    )
+
+
+class PublicAsset(Base, IdentifierMixin, TimestampMixin):
+    __tablename__ = "public_assets"
+
+    submission_id: Mapped[str | None] = mapped_column(
+        ForeignKey("submissions.id", ondelete="SET NULL"), nullable=True
+    )
+    version_id: Mapped[str | None] = mapped_column(
+        ForeignKey("cv_versions.id"), nullable=True
+    )
+    slug: Mapped[str] = mapped_column(String(160), unique=True, index=True)
+    artifact_key: Mapped[str] = mapped_column(String(512))
+    is_public: Mapped[bool] = mapped_column(Boolean, default=True)
+    expires_at: Mapped[str | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )
+
+    submission: Mapped[Submission | None] = relationship(
+        "Submission", back_populates="public_asset"
+    )
+    version: Mapped[CvVersion | None] = relationship("CvVersion")
+
+
+class AiSuggestion(Base, IdentifierMixin, TimestampMixin):
+    __tablename__ = "ai_suggestions"
+
+    submission_id: Mapped[str] = mapped_column(
+        ForeignKey("submissions.id", ondelete="CASCADE")
+    )
+    target_path: Mapped[str] = mapped_column(String(255))
+    operation: Mapped[str] = mapped_column(String(64))
+    proposed_text: Mapped[str | None] = mapped_column(Text, nullable=True)
+    rationale: Mapped[str | None] = mapped_column(Text, nullable=True)
+    accepted: Mapped[bool | None] = mapped_column(Boolean, nullable=True)
+    metadata_json: Mapped[dict | None] = mapped_column(JSONB, default=dict)
+
+    submission: Mapped[Submission] = relationship(
+        "Submission", back_populates="suggestions"
+    )

apps/backend/fastapi/app/models/mixins.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from datetime import datetime
+from uuid import uuid4
+
+from sqlalchemy import DateTime
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+
+class IdentifierMixin:
+    id: Mapped[str] = mapped_column(
+        UUID(as_uuid=False), primary_key=True, default=lambda: str(uuid4())
+    )
+
+
+class TimestampMixin:
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=datetime.utcnow
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow
+    )

apps/backend/fastapi/app/schemas/__init__.py

@@ -0,0 +1,29 @@
+from .cv import (
+    AiSuggestionRequest,
+    BranchCreateRequest,
+    DocumentCreateResult,
+    DocumentListResponse,
+    DocumentResponse,
+    PublicAssetLookupResponse,
+    PublicAssetResponse,
+    PublishRequest,
+    SubmissionCreateRequest,
+    SubmissionResponse,
+    SuggestionResponse,
+    VersionResponse,
+)
+
+__all__ = [
+    "DocumentResponse",
+    "DocumentListResponse",
+    "DocumentCreateResult",
+    "VersionResponse",
+    "BranchCreateRequest",
+    "SubmissionCreateRequest",
+    "SubmissionResponse",
+    "AiSuggestionRequest",
+    "SuggestionResponse",
+    "PublishRequest",
+    "PublicAssetResponse",
+    "PublicAssetLookupResponse",
+]

apps/backend/fastapi/app/schemas/cv.py

@@ -0,0 +1,125 @@
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any
+
+from pydantic import BaseModel, ConfigDict, Field
+
+from dlib.cv.schema import PatchSuggestion, StructuredBlock
+
+
+class DocumentResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    title: str
+    description: str | None
+    owner_id: str
+    root_version_id: str | None
+    created_at: datetime
+    updated_at: datetime
+    versions: list["VersionResponse"] = Field(default_factory=list)
+
+
+class VersionResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    branch_name: str
+    version_label: str | None
+    parent_version_id: str | None
+    structured_blocks: list[StructuredBlock] | None = None
+    artifact_docx_key: str | None = None
+    preview_html_key: str | None = None
+    created_at: datetime
+    updated_at: datetime
+    patches: list["PatchResponse"] = Field(default_factory=list)
+
+
+class PatchResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    target_path: str
+    operation: str
+    old_value: str | None = None
+    new_value: str | None = None
+    metadata_json: dict[str, Any] | None = None
+    created_at: datetime
+
+
+class DocumentListResponse(BaseModel):
+    items: list[DocumentResponse]
+
+
+class DocumentCreateResult(BaseModel):
+    document: DocumentResponse
+
+
+class BranchCreateRequest(BaseModel):
+    parent_version_id: str
+    branch_name: str
+    version_label: str | None = None
+    patches: list[dict[str, Any]] = Field(default_factory=list)
+
+
+class SubmissionResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    version_id: str
+    company_name: str
+    role_title: str
+    job_url: str | None = None
+    job_description: str | None = None
+    status: str
+    created_at: datetime
+    suggestions: list["SuggestionResponse"] = Field(default_factory=list)
+
+
+class SubmissionCreateRequest(BaseModel):
+    version_id: str
+    company_name: str
+    role_title: str
+    job_url: str | None = None
+    job_description: str | None = None
+
+
+class SuggestionResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    target_path: str
+    operation: str
+    proposed_text: str | None
+    rationale: str | None
+    accepted: bool | None
+    metadata_json: dict[str, Any] | None = None
+
+
+class AiSuggestionRequest(BaseModel):
+    job_description: str
+    focus_keywords: list[str] = Field(default_factory=list)
+
+
+class PublishRequest(BaseModel):
+    version_id: str | None = None
+    submission_id: str | None = None
+    slug: str | None = None
+
+
+class PublicAssetResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: str
+    slug: str
+    artifact_key: str
+    is_public: bool
+    created_at: datetime
+    version_id: str | None = None
+    submission_id: str | None = None
+    url: str | None = None
+
+
+class PublicAssetLookupResponse(BaseModel):
+    asset: PublicAssetResponse

apps/backend/fastapi/app/services/documents.py

@@ -0,0 +1,63 @@
+from __future__ import annotations
+
+from fastapi import UploadFile
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.orm import selectinload
+
+from dlib.cv import parse_docx_bytes
+
+from app.models import CvDocument, CvVersion
+from app.services.storage import persist_upload
+
+
+async def create_document(
+    session: AsyncSession,
+    *,
+    owner_id: str,
+    title: str,
+    description: str | None,
+    upload: UploadFile,
+) -> CvDocument:
+    artifact_key, file_bytes = await persist_upload(upload, owner_id)
+    structured = parse_docx_bytes(file_bytes, version_label="root")
+
+    doc = CvDocument(owner_id=owner_id, title=title, description=description)
+    version = CvVersion(
+        document=doc,
+        branch_name="root",
+        version_label="root",
+        artifact_docx_key=artifact_key,
+        structured_blocks=[block.model_dump() for block in structured.blocks],
+        metadata_json={"ingested": True},
+    )
+    doc.versions.append(version)
+    doc.root_version_id = version.id
+
+    session.add(doc)
+    await session.commit()
+    await session.refresh(doc, attribute_names=["versions"])
+    return doc
+
+
+async def list_documents(session: AsyncSession, owner_id: str) -> list[CvDocument]:
+    stmt = (
+        select(CvDocument)
+        .where(CvDocument.owner_id == owner_id)
+        .options(selectinload(CvDocument.versions).selectinload(CvVersion.patches))
+        .order_by(CvDocument.created_at.desc())
+    )
+    result = await session.execute(stmt)
+    return result.scalars().unique().all()
+
+
+async def get_document(
+    session: AsyncSession, owner_id: str, document_id: str
+) -> CvDocument | None:
+    stmt = (
+        select(CvDocument)
+        .where(CvDocument.id == document_id, CvDocument.owner_id == owner_id)
+        .options(selectinload(CvDocument.versions).selectinload(CvVersion.patches))
+    )
+    result = await session.execute(stmt)
+    return result.scalars().unique().one_or_none()

apps/backend/fastapi/app/services/publication.py

@@ -0,0 +1,69 @@
+from __future__ import annotations
+
+import re
+from datetime import datetime
+from uuid import uuid4
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models import CvDocument, CvVersion, PublicAsset, Submission
+
+
+async def publish_version(
+    session: AsyncSession,
+    *,
+    owner_id: str,
+    version_id: str | None,
+    submission_id: str | None,
+    slug: str | None,
+) -> PublicAsset | None:
+    target_version: CvVersion | None = None
+    target_submission: Submission | None = None
+
+    if submission_id:
+        stmt = (
+            select(Submission)
+            .join(CvVersion)
+            .join(CvDocument)
+            .where(Submission.id == submission_id, CvDocument.owner_id == owner_id)
+        )
+        result = await session.execute(stmt)
+        target_submission = result.scalars().one_or_none()
+        target_version = target_submission.version if target_submission else None
+    elif version_id:
+        stmt = (
+            select(CvVersion)
+            .join(CvDocument)
+            .where(CvVersion.id == version_id, CvDocument.owner_id == owner_id)
+        )
+        result = await session.execute(stmt)
+        target_version = result.scalars().one_or_none()
+    else:
+        return None
+
+    if not target_version or not target_version.artifact_docx_key:
+        return None
+
+    resolved_slug = slugify(slug or target_version.version_label or "cv")
+    if not resolved_slug:
+        resolved_slug = f"cv-{uuid4().hex[:6]}"
+
+    asset = PublicAsset(
+        submission_id=target_submission.id if target_submission else None,
+        version_id=target_version.id,
+        slug=resolved_slug,
+        artifact_key=target_version.artifact_docx_key,
+        is_public=True,
+        expires_at=None,
+    )
+    session.add(asset)
+    await session.commit()
+    await session.refresh(asset)
+    return asset
+
+
+def slugify(value: str) -> str:
+    safe = re.sub(r"[^a-zA-Z0-9-]+", "-", value.strip().lower())
+    safe = re.sub(r"-+", "-", safe).strip("-")
+    return safe[:120]

apps/backend/fastapi/app/services/storage.py

@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+from datetime import datetime
+from pathlib import Path
+from typing import Tuple
+
+from fastapi import UploadFile
+
+from app.core.config import get_settings
+from dlib.storage import MinioStorageClient, MinioStorageConfig
+
+
+def _build_storage_client() -> MinioStorageClient:
+    settings = get_settings()
+    config = MinioStorageConfig(
+        bucket_name=settings.storage_bucket,
+        region_name=settings.storage_region,
+        endpoint_url=settings.storage_endpoint_url,
+        access_key_id=settings.storage_access_key,
+        secret_access_key=settings.storage_secret_key,
+        path_prefix=settings.storage_path_prefix,
+    )
+    return MinioStorageClient(config)
+
+
+storage_client = _build_storage_client()
+
+
+def build_artifact_key(owner_id: str, suffix: str) -> str:
+    safe_suffix = suffix.lstrip(".") if suffix else ""
+    timestamp = datetime.utcnow().strftime("%Y%m%d%H%M%S")
+    return storage_client.build_key(
+        stem=f"{owner_id}-{timestamp}", extension=safe_suffix
+    )
+
+
+async def persist_upload(upload: UploadFile, owner_id: str) -> Tuple[str, bytes]:
+    data = await upload.read()
+    suffix = Path(upload.filename or "document.docx").suffix or ".docx"
+    key = build_artifact_key(owner_id, suffix)
+    storage_client.upload_bytes(key=key, data=data, content_type=upload.content_type)
+    return key, data
+
+
+def build_public_url(key: str) -> str | None:
+    settings = get_settings()
+    if settings.storage_endpoint_url:
+        # Object storage accessible through endpoint URL
+        base = settings.storage_endpoint_url.rstrip("/")
+        return f"{base}/{settings.storage_bucket}/{key}"
+    return storage_client.generate_presigned_url(key=key, expires_in=3600)

apps/backend/fastapi/app/services/submissions.py

@@ -0,0 +1,112 @@
+from __future__ import annotations
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.orm import selectinload
+
+from dlib.ai.tailoring import TailoringContext, generate_tailoring_suggestions
+from dlib.cv import StructuredBlock, StructuredDocument
+
+from app.models import AiSuggestion, CvDocument, CvVersion, Submission, SubmissionStatus
+
+
+async def create_submission(
+    session: AsyncSession,
+    *,
+    owner_id: str,
+    version_id: str,
+    company_name: str,
+    role_title: str,
+    job_url: str | None,
+    job_description: str | None,
+) -> Submission | None:
+    version = await _get_version_for_owner(session, owner_id, version_id)
+    if not version:
+        return None
+    submission = Submission(
+        version_id=version.id,
+        company_name=company_name,
+        role_title=role_title,
+        job_url=job_url,
+        job_description=job_description,
+        status=SubmissionStatus.draft,
+    )
+    session.add(submission)
+    await session.commit()
+    await session.refresh(submission)
+    return submission
+
+
+async def request_ai_suggestions(
+    session: AsyncSession,
+    *,
+    owner_id: str,
+    submission_id: str,
+    job_description: str,
+    focus_keywords: list[str],
+) -> list[AiSuggestion] | None:
+    submission = await _get_submission_for_owner(session, owner_id, submission_id)
+    if not submission:
+        return None
+    version = submission.version
+    document = StructuredDocument(
+        version_label=version.version_label,
+        blocks=[
+            StructuredBlock.model_validate(block)
+            for block in version.structured_blocks or []
+        ],
+    )
+    context = TailoringContext(
+        job_description=job_description, focus_keywords=focus_keywords
+    )
+    suggestions = generate_tailoring_suggestions(context, document)
+    if not suggestions:
+        return []
+    submission.status = SubmissionStatus.tailoring
+    created: list[AiSuggestion] = []
+    for suggestion in suggestions:
+        ai_row = AiSuggestion(
+            submission_id=submission.id,
+            target_path=suggestion.target_path,
+            operation=suggestion.operation.value,
+            proposed_text=suggestion.new_value,
+            rationale=suggestion.rationale,
+            metadata_json={
+                "keywords": suggestion.keywords,
+                "confidence": suggestion.confidence,
+            },
+        )
+        session.add(ai_row)
+        created.append(ai_row)
+    await session.commit()
+    for row in created:
+        await session.refresh(row)
+    return created
+
+
+async def _get_version_for_owner(
+    session: AsyncSession, owner_id: str, version_id: str
+) -> CvVersion | None:
+    stmt = (
+        select(CvVersion)
+        .join(CvDocument)
+        .where(CvVersion.id == version_id, CvDocument.owner_id == owner_id)
+    )
+    result = await session.execute(stmt)
+    return result.scalars().one_or_none()
+
+
+async def _get_submission_for_owner(
+    session: AsyncSession,
+    owner_id: str,
+    submission_id: str,
+) -> Submission | None:
+    stmt = (
+        select(Submission)
+        .join(CvVersion)
+        .join(CvDocument)
+        .where(Submission.id == submission_id, CvDocument.owner_id == owner_id)
+        .options(selectinload(Submission.version))
+    )
+    result = await session.execute(stmt)
+    return result.scalars().one_or_none()

apps/backend/fastapi/app/services/versions.py

@@ -0,0 +1,78 @@
+from __future__ import annotations
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.orm import selectinload
+
+from dlib.cv import (
+    StructuredBlock,
+    StructuredDocument,
+    PatchPayload,
+    apply_patchset,
+    validate_patchset,
+)
+
+from app.models import CvDocument, CvPatch, CvVersion
+
+
+async def create_branch(
+    session: AsyncSession,
+    *,
+    owner_id: str,
+    parent_version_id: str,
+    branch_name: str,
+    version_label: str | None,
+    patches: list[dict],
+) -> CvVersion | None:
+    stmt = (
+        select(CvVersion)
+        .join(CvDocument)
+        .where(CvVersion.id == parent_version_id, CvDocument.owner_id == owner_id)
+        .options(selectinload(CvVersion.patches))
+    )
+    result = await session.execute(stmt)
+    parent = result.scalars().one_or_none()
+    if not parent:
+        return None
+
+    base_doc = StructuredDocument(
+        version_label=parent.version_label,
+        blocks=[
+            StructuredBlock.model_validate(block)
+            for block in parent.structured_blocks or []
+        ],
+    )
+    patch_models = [PatchPayload.model_validate(item) for item in patches]
+    if patch_models:
+        validate_patchset(base_doc, patch_models)
+        updated_doc = apply_patchset(base_doc, patch_models)
+    else:
+        updated_doc = base_doc
+
+    new_version = CvVersion(
+        document_id=parent.document_id,
+        parent_version_id=parent.id,
+        branch_name=branch_name,
+        version_label=version_label or branch_name,
+        artifact_docx_key=parent.artifact_docx_key,
+        structured_blocks=[block.model_dump() for block in updated_doc.blocks],
+        metadata_json={"patch_count": len(patch_models)},
+    )
+
+    session.add(new_version)
+    await session.flush()
+    for patch in patch_models:
+        session.add(
+            CvPatch(
+                version_id=new_version.id,
+                target_path=patch.target_path,
+                operation=patch.operation.value,
+                old_value=patch.old_value,
+                new_value=patch.new_value,
+                metadata_json=patch.metadata,
+            )
+        )
+
+    await session.commit()
+    await session.refresh(new_version)
+    return new_version

apps/backend/fastapi/server.py

@@ -3,6 +3,7 @@ from fastapi.middleware.cors import CORSMiddleware
 import uvicorn
 import os
 from dotenv import load_dotenv
+
 load_dotenv()
 
 app = FastAPI()
@@ -15,10 +16,12 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
+
 @app.get("/health")
 async def health():
     return {"status": "healthy"}
 
+
 if __name__ == "__main__":
-    PORT=int(os.getenv("BACKEND_PORT", 5000))
+    PORT = int(os.getenv("BACKEND_PORT", 5000))
     uvicorn.run("server:app", host="0.0.0.0", port=PORT, reload=True)