fix(bridge): v38 auto-approve response에 _from_ws 마커 추가 — Observer polling 실패 수정 (v0.5.103)

근본 원인: auto-approve response 파일에 _from_ws 마커 없음.
processResponseFile(response watcher)이 Observer보다 먼저 파일을 읽고 삭제.
Observer의 GET /response/{rid} polling이 항상 {waiting:true} 반환.
known-issues [2026-04-18] WS response 파일 삭제 버그와 동일 패턴.

extension/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "gravity-bridge",
-  "version": "0.5.102",
+  "version": "0.5.103",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "gravity-bridge",
-      "version": "0.5.102",
+      "version": "0.5.103",
       "dependencies": {
         "cheerio": "^1.2.0",
         "ws": "^8.19.0"

extension/package.json

@@ -2,7 +2,7 @@
   "name": "gravity-bridge",
   "displayName": "Gravity Bridge",
   "description": "Discord-based unified approval system for Antigravity AI interactions.",
-  "version": "0.5.102",
+  "version": "0.5.103",
   "publisher": "variet",
   "engines": {
     "vscode": "^1.100.0"

extension/src/http-bridge.ts

@@ -379,6 +379,8 @@ function _handlePending(req: any, res: any, ctx: HttpBridgeContext) {
                     button_index: alwaysRunBtnIndex >= 0 ? alwaysRunBtnIndex : 0,
                     step_type: data.step_type || 'command',
                     project_name: ctx.projectName,
+                    _from_ws: true,  // v38: prevent processResponseFile from consuming before Observer polls
+                    _auto_approve_ttl: Date.now() + 60_000,  // auto-expire after 60s
                 };
                 fs.writeFileSync(
                     path.join(responseDir, `${rid}.json`),