Ship decision_template.docx into the Docker image

The analysis DOCX exporter loads skills/docx/decision_template.docx at
runtime, but .dockerignore was excluding the entire skills/ tree and
Dockerfile didn't COPY it — so the deployed container returned
'Template not found at /app/skills/docx/decision_template.docx' on
every /export-docx request.

  .dockerignore  Re-include the one file we need at runtime.
  Dockerfile    COPY that single file into /app/skills/docx/.

Documentation and SKILL.md stay outside the image.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -57,6 +57,10 @@ COPY --from=builder /app/.next/static ./.next/static
 COPY web/ ./web/
 COPY mcp-server/src/ ./mcp-server/src/
 
+# DOCX template used by analysis_docx_exporter — loaded at runtime by path
+# (Path(__file__).resolve().parents[4] / "skills/docx/decision_template.docx")
+COPY skills/docx/decision_template.docx ./skills/docx/decision_template.docx
+
 # Make mcp-server source available to web/app.py (it does sys.path.insert for legal_mcp)
 ENV PYTHONPATH=/app/mcp-server/src