feat: fix Docker worker container setup

- Install uv instead of deprecated uvx package
- Add mcp-server and configs directories to container
- Mount target repo dynamically via TARGET_REPO env variable

docker/docker-compose.temporal.yml

@@ -25,8 +25,8 @@ services:
       temporal:
         condition: service_healthy
     volumes:
-      - ../deliverables:/app/deliverables
       - ../prompts:/app/prompts
+      - ${TARGET_REPO:-/tmp/target-repo}:/target-repo
     shm_size: 2gb
     ipc: host
     security_opt: