Add Micron asset picker to work package creator

Adds an optional read-only Micron asset catalog lookup for the WP creator, with searchable asset IDs, CSV import, and graceful fallback to manual asset entry when the catalog is absent or unreachable. This includes the backend /api/assets endpoint, SQL Server connector configuration, Docker network changes for outbound access, and UI updates/documentation to make the catalog read-only and clearly distinguish Micron-vetted assets from manual entries.

server/requirements.txt

@@ -9,6 +9,12 @@ gunicorn==26.0.0
 sqlalchemy==2.0.51
 alembic==1.18.5             # database migrations
 psycopg[binary]==3.3.4
+pymssql==2.3.13             # read-only lookups against the Micron asset DB (SQL Server).
+                            # Chosen over pyodbc because it ships self-contained wheels —
+                            # pyodbc would also need msodbcsql18 + unixODBC installed in
+                            # the image. To use pyodbc instead, add it here, install the
+                            # Microsoft ODBC driver in the Dockerfile, and switch
+                            # MICRON_DB_URL to mssql+pyodbc://…?driver=ODBC+Driver+18+for+SQL+Server
 pydantic==2.13.4
 python-dotenv==1.2.2
 bcrypt==5.0.0               # password hashing