fix(bridge): stall-based approval detection + known issues from deep debugging

- IDLE→stall detection: RUNNING+delta=0 for 6 polls (30s)
- lastModifiedTime-based thinking filter (partial)
- ResolveOutstandingSteps confirmed CANCELS steps (removed)
- HandleCascadeUserInteraction always socket hang up (removed)
- VS Code accept commands: silent success, no effect
- Hybrid approval: focus+all commands sequential, no break
- logToFile: console.log backup added
- Known issues: 4 critical findings documented
- better-antigravity reference added for future research

better-antigravity-main/.gitignore

@@ -0,0 +1,10 @@
+GEMINI.md
+node_modules/
+dist/
+out/
+.env
+*.vsix
+*.bak
+*.log
+.DS_Store
+Thumbs.db