feat(mcp): add 8 new validated MCP servers

Add actual-mcp, beszel-mcp, gitea-mcp, ha-mcp, limesurvey-mcp,
linkwarden-mcp, mcp-grafana, and superset-mcp with full validation.

Key fixes applied:
- linkwarden-mcp: Added 'stdio' subcommand to ENTRYPOINT
- mcp-grafana: Fixed build path (./cmd/mcp-grafana) and added '--transport stdio' flag

All 8 servers validated with MCP protocol handshake.
Working MCP server count: 24 (up from 16)

💘 Generated with Crush

Assisted-by: GLM-5 via Crush <crush@charm.land>

dockerfiles/ha-mcp/Dockerfile

@@ -0,0 +1,14 @@
+FROM python:3.13-slim
+
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
+
+WORKDIR /app
+
+COPY . .
+
+RUN uv venv && uv pip install --no-cache -e .
+
+ENV PYTHONUNBUFFERED=1
+ENV PATH=/app/.venv/bin:$PATH
+
+ENTRYPOINT ["python", "-m", "ha_mcp"]