Fix docker-compose port mapping to match Dockerfile

[wshobson]

Summary

Supersedes #94 — incorporates the valid docker-compose fix, drops the stale server.py changes.

• Fix port mapping from "8003:8003" to "8003:8000" (host:container) — the Dockerfile exposes and listens on port 8000
• Fix API_PORT env var from 8003 to 8000 to match the actual container port

The server.py middleware fix from #94 was already applied on main, so it's been dropped to avoid a stale diff.

Credit to @BobDenar1212 for identifying both issues.

Test plan

• Verify docker compose up starts the server accessible on host port 8003
• Verify docker compose env vars match Dockerfile defaults

Closes #94

[claude]

Code Review

LGTM — the fix is correct and well-scoped.

The Dockerfile explicitly exposes and starts the server on port 8000 (EXPOSE 8000, --port 8000 in CMD). The old mapping 8003:8003 routed host traffic to a port the container never listened on, making the service unreachable via Docker. Both changes are correct.

Notes

• docker-compose.yml:17 API_PORT=8000 is the right value to align with the container, but API_PORT is not read anywhere in maverick_mcp/ — the CMD hardcodes --port 8000 directly. The env var is harmless but dead; worth either wiring it up or removing it in a follow-up.
• No other files changed, so no risk of regression elsewhere.