docs: move Repository section from README to .claude/repo-notes.md

Repository mirror info and pushall alias is local-only convention,
not user-facing. Move to .claude/ as local memo.

.gitignore

@@ -41,3 +41,6 @@ local-tool/visiona-local/payload/
 .env
 .env.local
 .env.*.local
+
+# Claude Code 本地 session / memory，不入 git
+.claude/

README.md

@@ -10,18 +10,6 @@ Wails + Go + Next.js, packaged as macOS dmg / Windows exe / Linux AppImage.
 
 See [`local-tool/README.md`](./local-tool/README.md) for details.
 
-## Repository
-
-This repo is mirrored across two hosts:
-- **Gitea (primary)**: https://gitea.innovedus.com/jim800121/visionA
-- **GitHub (mirror)**: https://github.com/jim800121/visionA (private)
-
-Use the `pushall` git alias to push to both:
-```bash
-git config alias.pushall '!git push gitea main && git push github main'
-git pushall
-```
-
 ## License
 
 TBD (internal use)