Enhance chat handling and introduce Caveman feature

- Refactored handleChatCore to include Caveman functionality, allowing for terse-style system prompts to reduce output token usage.
- Updated APIPageClient to manage Caveman settings, including enabling/disabling and selecting compression levels.
- Adjusted AntigravityExecutor to consolidate function declarations for compatibility with Gemini.
- Removed unnecessary console logs during translator initialization across multiple routes.

src/mitm/server.js

@@ -12,9 +12,15 @@ const { getCertForDomain } = require("./cert/generate");
 const DB_FILE = path.join(DATA_DIR, "db.json");
 const LOCAL_PORT = 443;
 const IS_WIN = process.platform === "win32";
-const ENABLE_FILE_LOG = false;
+const ENABLE_FILE_LOG = true;
 const INTERNAL_REQUEST_HEADER = { name: "x-request-source", value: "local" };
 
+// Host rewrite for upstream forward: PROD cloudcode-pa is rate-limited (429),
+// daily-cloudcode-pa (dev endpoint) accepts same body+token. Same trick as open-sse.
+const HOST_REWRITE = {
+  "cloudcode-pa.googleapis.com": "daily-cloudcode-pa.googleapis.com",
+};
+
 // Load handlers — dev/ overrides handlers/ for private implementations
 function loadHandler(name) {
   try { return require(`./dev/${name}`); } catch {}
@@ -43,7 +49,6 @@ function sniCallback(servername, cb) {
       cert: `${certData.cert}\n${rootCAPem}`
     });
     certCache.set(servername, ctx);
-    log(`🔐 Cert generated: ${servername}`);
     cb(null, ctx);
   } catch (e) {
     err(`SNI error for ${servername}: ${e.message}`);
@@ -123,7 +128,8 @@ function getMappedModel(tool, model) {
  * Also tees full stream into a dump file when ENABLE_FILE_LOG is on.
  */
 async function passthrough(req, res, bodyBuffer, onResponse) {
-  const targetHost = (req.headers.host || TARGET_HOSTS[0]).split(":")[0];
+  const originalHost = (req.headers.host || TARGET_HOSTS[0]).split(":")[0];
+  const targetHost = HOST_REWRITE[originalHost] || originalHost;
   const targetIP = await resolveTargetIP(targetHost);
   const dumper = ENABLE_FILE_LOG ? createResponseDumper(req, "passthrough") : null;
 
@@ -194,25 +200,18 @@ const server = https.createServer(sslOptions, async (req, res) => {
     const isChat = patterns.some(p => req.url.includes(p));
     if (!isChat) return passthrough(req, res, bodyBuffer);
 
-    log(`🔍 [${tool}] url=${req.url} | bodyLen=${bodyBuffer.length}`);
-
     // Cursor uses binary proto — model extraction not possible at this layer.
     // Delegate directly to handler which decodes proto internally.
     if (tool === "cursor") {
-      log(`⚡ intercept | cursor | proto`);
       return handlers[tool].intercept(req, res, bodyBuffer, null, passthrough);
     }
 
     const model = extractModel(req.url, bodyBuffer);
-    log(`🔍 [${tool}] model="${model}"`);
-
     const mappedModel = getMappedModel(tool, model);
     if (!mappedModel) {
-      log(`⏩ passthrough | no mapping | ${tool} | ${model || "unknown"}`);
       return passthrough(req, res, bodyBuffer);
     }
 
-    log(`⚡ intercept | ${tool} | ${model} → ${mappedModel}`);
     return handlers[tool].intercept(req, res, bodyBuffer, mappedModel, passthrough);
   } catch (e) {
     err(`Unhandled error: ${e.message}`);