feat: include codex-lens Python package in npm distribution

- Add codex-lens/src/codexlens/ to package.json files
- Add codex-lens/pyproject.toml for pip install
- Update .npmignore to exclude Python cache and dev files
- Enables ccw view CodexLens installation from npm package

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package.json

@@ -53,6 +53,8 @@
     ".codex/",
     ".gemini/",
     ".qwen/",
+    "codex-lens/src/codexlens/",
+    "codex-lens/pyproject.toml",
     "CLAUDE.md",
     "README.md"
   ],