Finish MVP and dockerize

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]