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/src/extension.ts

@@ -0,0 +1,72 @@
+/**
+ * Better Antigravity — Extension entry point.
+ *
+ * Thin orchestrator: wires up modules, no business logic here.
+ *
+ * @module extension
+ */
+
+import * as vscode from 'vscode';
+import { AntigravitySDK } from 'antigravity-sdk';
+import { autoApply } from './auto-run';
+import { status, revertAutoRun } from './commands';
+
+let sdk: AntigravitySDK | null = null;
+let output: vscode.OutputChannel;
+
+function log(msg: string): void {
+    const ts = new Date().toISOString().substring(11, 19);
+    output?.appendLine(`[${ts}] ${msg}`);
+}
+
+export async function activate(context: vscode.ExtensionContext) {
+    output = vscode.window.createOutputChannel('Better Antigravity');
+    context.subscriptions.push(output);
+    log('Activating...');
+
+    // ── Commands ──────────────────────────────────────────────────────
+    context.subscriptions.push(
+        vscode.commands.registerCommand('better-antigravity.status', () => status(sdk, output)),
+        vscode.commands.registerCommand('better-antigravity.revertAutoRun', revertAutoRun),
+    );
+
+    // ── Auto-Run Fix (async, non-blocking, no prompt) ─────────────────
+    autoApply().then(fixResults => {
+        for (const r of fixResults) {
+            log(`[auto-run] ${r.label}: ${r.status}${r.bytesAdded ? ` (+${r.bytesAdded}b)` : ''}${r.error ? ` -- ${r.error}` : ''}`);
+        }
+    });
+
+    // ── SDK Init ─────────────────────────────────────────────────────
+    try {
+        sdk = new AntigravitySDK(context);
+        await sdk.initialize();
+        log(`SDK v${sdk.version} initialized`);
+
+        // Title proxy for chat rename
+        sdk.integration.enableTitleProxy();
+
+        // Seamless install (handles first-time prompt + auto-reload on update)
+        await sdk.integration.installSeamless(
+            (cmd) => vscode.commands.executeCommand(cmd),
+            (msg, ...items) => vscode.window.showInformationMessage(msg, ...items),
+        );
+
+        // Heartbeat (keeps renderer script alive)
+        const hbTimer = setInterval(() => sdk?.integration.signalActive(), 30_000);
+        context.subscriptions.push({ dispose: () => clearInterval(hbTimer) });
+
+        // Auto-repair (re-patch after AG updates)
+        sdk.integration.enableAutoRepair();
+
+        log('Active');
+    } catch (err: any) {
+        log(`SDK init failed: ${err.message}`);
+        log('Running in degraded mode (auto-run fix only)');
+    }
+}
+
+export function deactivate() {
+    sdk?.dispose();
+    sdk = null;
+}