Add configurable cache TTL via environment variable

- IOR_CACHE_TTL environment variable to control cache duration
- Set to 0 to disable caching (always fetch fresh)
- Set to 60000 for 1 minute cache (useful during development)
- Default remains 1 hour (3600000ms)
- Improved logging to show when cache is disabled or expired

lib/metro-ior-resolver.js

@@ -31,7 +31,13 @@ const processedTypes = new Set();
 /**
  * Remote cache configuration
  */
-const CACHE_TTL = 3600000; // 1 hour default TTL
+// Cache TTL: Use environment variable or default to 1 hour
+// Set IOR_CACHE_TTL=0 to always fetch fresh
+// Set IOR_CACHE_TTL=60000 for 1 minute cache (useful during development)
+const CACHE_TTL = process.env.IOR_CACHE_TTL !== undefined 
+  ? parseInt(process.env.IOR_CACHE_TTL) 
+  : 3600000; // 1 hour default
+
 // Use project-local cache directory instead of temp directory to avoid watchman issues
 const CACHE_DIR = path.join(process.cwd(), '.ior-cache', 'remote');
 
@@ -102,7 +108,12 @@ function getCachedRemoteComponent(ior) {
   }
   
   // Check if cache entry is still valid
-  if (Date.now() - entry.timestamp > entry.ttl) {
+  if (CACHE_TTL === 0 || Date.now() - entry.timestamp > entry.ttl) {
+    if (CACHE_TTL === 0) {
+      console.log(`[IOR Resolver] Cache disabled (IOR_CACHE_TTL=0), fetching fresh: ${ior}`);
+    } else {
+      console.log(`[IOR Resolver] Cache expired for: ${ior}`);
+    }
     remoteCache.delete(ior);
     // Try to delete the directory (non-blocking)
     if (entry.directory) {