fix(extension): restore AI Response Content capture by patching DOM extraction, CSP connect-src, and TS regex literal serialization

extension/src/step-probe.ts

@@ -244,6 +244,45 @@ function setupMonitor() {
                 if (pollCount <= 3) ctx.logToFile(`[POLL] GetDiagnostics fallback failed: ${e.message}`);
             }
 
+            try {
+                // Fallback 2: The backend API hard-limits to 10 trajectories, often dropping the newest active session.
+                // We physically scan the .gemini/antigravity/brain/ directory to guarantee we track the latest ones.
+                const brainDir = path.resolve(ctx.bridgePath, '..', 'brain');
+                if (fs.existsSync(brainDir)) {
+                    const brainDirs = fs.readdirSync(brainDir, { withFileTypes: true })
+                        .filter(dirent => dirent.isDirectory() && dirent.name.length === 36)
+                        .map(dirent => {
+                            const stats = fs.statSync(path.join(brainDir, dirent.name));
+                            return { name: dirent.name, time: stats.mtimeMs };
+                        })
+                        .sort((a, b) => b.time - a.time);
+                    
+                    for (let i = 0; i < Math.min(3, brainDirs.length); i++) {
+                        const sid = brainDirs[i].name;
+                        if (!allTraj.trajectorySummaries[sid]) {
+                            try {
+                                const stResp = await ctx.sdk.ls.rawRPC('GetCascadeTrajectorySteps', { cascadeId: sid, stepOffset: 0 });
+                                if (stResp?.steps) {
+                                    const len = stResp.steps.length;
+                                    const ls = len > 0 ? stResp.steps[len - 1] : null;
+                                    allTraj.trajectorySummaries[sid] = {
+                                        status: ls?.status || 'CASCADE_RUN_STATUS_RUNNING', // Assume running if we have to force it
+                                        stepCount: len,
+                                        lastModifiedTime: new Date(brainDirs[i].time).toISOString(),
+                                        summary: 'Discovered via brain/ scan',
+                                        trajectoryMetadata: { workspaces: [{ workspaceFolderAbsoluteUri: ctx.workspaceUri.replace(/\\/g, '/') }] }
+                                    };
+                                }
+                            } catch (e: any) {
+                                if (pollCount <= 30) ctx.logToFile(`[POLL] Fallback 2 error for sid=${sid}: ${e.message}`);
+                            }
+                        }
+                    }
+                }
+            } catch (e: any) {
+                if (pollCount <= 3) ctx.logToFile(`[POLL] brainDir scan fallback failed: ${e.message}`);
+            }
+
             if (!allTraj?.trajectorySummaries || Object.keys(allTraj.trajectorySummaries).length === 0) {
                 if (pollCount <= 3) ctx.logToFile('[POLL] no trajectorySummaries found from any source');
                 return;