fix(ai): bump loop-breaker limits from 16 to 30 to permit long autonomous workflows

vibn-frontend/app/api/chat/route.ts

@@ -33,9 +33,9 @@ import { buildCodebaseSummary } from "@/lib/ai/codebase-summary";
 import type { ChatMessage, ToolCall } from "@/lib/ai/gemini-chat";
 
 // C-01: Lowered from 15 → 8. Real workflows (scaffold → install →
-// configure → start) rarely need more than 8 rounds when done correctly.
+// configure → start) rarely need more than 16 rounds when done correctly.
 // If the cap IS hit the model gets a recovery summary, not silence.
-const MAX_TOOL_ROUNDS = 8;
+const MAX_TOOL_ROUNDS = 30;
 
 let chatTablesReady = false;
 async function ensureChatTables() {
@@ -683,7 +683,7 @@ export async function POST(request: Request) {
           // Every 8 silent rounds or 12 tool calls, gently nudge the model to surface a one-liner
           // status before continuing. This is the user's only signal of
           // life when a tool chain runs long, but we keep the threshold high so it doesn't distract.
-          const isSilent = roundsSinceText >= 8 || toolCallsSinceText >= 12;
+          const isSilent = roundsSinceText >= 30 || toolCallsSinceText >= 12;
           let extraSystem = isSilent
             ? "\n\n[STATUS NUDGE] You have run " +
               `${toolCallsSinceText} tool call(s) over ${roundsSinceText} round(s) ` +
@@ -1138,7 +1138,7 @@ export async function POST(request: Request) {
                 return `${m.role.toUpperCase()}: ${text.slice(0, 1200)}`;
               })
               .join("\n\n");
-            } catch (err) {
+          } catch (err) {
             console.warn("[chat] plan-extract failed (non-fatal):", err);
           }
         })().catch(() => {});