Add Oh My Pi and improve dev container config

- Install @oh-my-pi/pi-coding-agent and move Go binaries to /usr/local/bin
- Add omp-data volume and make web port configurable via PORT_WEB
- Replace aider self-check with omp in Makefile
- Harden entrypoint: avoid exporting API keys to SSH env and overwrite
  mounted public key into authorized_keys
- Add .dockerignore, simplify .env.example, and document omp in README

vibe-dev/compose.yml

@@ -17,8 +17,8 @@ services:
       - TERM=xterm-256color
     ports:
       - "${SSH_PORT:-2222}:22"
-      - "6300:3000"
-      - "6173-6175:5173-5175"
+      - "${PORT_WEB:-6300}:3000"
+      - "6173-6179:5173-5179"
     volumes:
       - ${HOST_PROJECT_PATH:-.}:${CONTAINER_WORKSPACE_PATH:-/workspace}:cached
       # 1. 使用命名卷持久化整个 .ssh 目录
@@ -31,6 +31,8 @@ services:
       # --- 新增：Zed 远程开发缓存 ---
       - zed-server:/root/.zed_server
       - zed-share:/root/.local/share/zed
+      # --- 新增：Oh My Pi 配置/记忆/OAuth 登录态持久化 ---
+      - omp-data:/root/.omp
     stdin_open: true
     tty: true
     restart: always
@@ -42,3 +44,4 @@ volumes:
   go-cache:
   zed-server:
   zed-share:
+  omp-data: