Add startup logging for IOR_CACHE_TTL configuration

Show clear cache TTL settings when Metro starts:
- Displays whether cache is disabled (TTL=0)
- Shows custom TTL in human-readable format (e.g., 1m 30s)
- Shows default TTL when no env variable is set
- Includes cache directory location

This helps developers understand what cache settings are active.

lib/metro-ior-resolver.js

@@ -41,6 +41,22 @@ const CACHE_TTL = process.env.IOR_CACHE_TTL !== undefined
 // Use project-local cache directory instead of temp directory to avoid watchman issues
 const CACHE_DIR = path.join(process.cwd(), '.ior-cache', 'remote');
 
+// Log cache TTL configuration on startup
+console.log('[IOR Resolver] Cache TTL Configuration:');
+if (CACHE_TTL === 0) {
+  console.log('[IOR Resolver]   ✓ Cache DISABLED (IOR_CACHE_TTL=0) - Always fetching fresh');
+} else if (process.env.IOR_CACHE_TTL !== undefined) {
+  const ttlMinutes = Math.floor(CACHE_TTL / 60000);
+  const ttlSeconds = Math.floor((CACHE_TTL % 60000) / 1000);
+  const ttlFormatted = ttlMinutes > 0 
+    ? `${ttlMinutes}m ${ttlSeconds}s`
+    : `${ttlSeconds}s`;
+  console.log(`[IOR Resolver]   ✓ Cache TTL set to ${ttlFormatted} (IOR_CACHE_TTL=${CACHE_TTL}ms)`);
+} else {
+  console.log('[IOR Resolver]   ✓ Cache TTL using default: 1 hour (3600000ms)');
+}
+console.log(`[IOR Resolver]   ✓ Cache directory: ${CACHE_DIR}`);
+
 /**
  * Ensure cache directory exists
  */