fix: resolve TS build errors and add missing Ollama keys to Rust keyring

- Use for...of entries() instead of index-based loops in summarization.ts
  to satisfy strict noUncheckedIndexedAccess (7 TS18048/TS2345 errors)
- Replace fragile API_PROVIDERS[1] with .find(p => p.name === groq)
- Add OLLAMA_API_URL and OLLAMA_MODEL to SUPPORTED_SECRET_KEYS in main.rs
  so keychain secrets are injected into sidecar on desktop startup

src-tauri/src/main.rs

@@ -24,7 +24,7 @@ const DESKTOP_LOG_FILE: &str = "desktop.log";
 const MENU_FILE_SETTINGS_ID: &str = "file.settings";
 const MENU_HELP_GITHUB_ID: &str = "help.github";
 const MENU_HELP_DEVTOOLS_ID: &str = "help.devtools";
-const SUPPORTED_SECRET_KEYS: [&str; 18] = [
+const SUPPORTED_SECRET_KEYS: [&str; 20] = [
     "GROQ_API_KEY",
     "OPENROUTER_API_KEY",
     "FRED_API_KEY",
@@ -43,6 +43,8 @@ const SUPPORTED_SECRET_KEYS: [&str; 18] = [
     "VITE_WS_RELAY_URL",
     "FINNHUB_API_KEY",
     "NASA_FIRMS_API_KEY",
+    "OLLAMA_API_URL",
+    "OLLAMA_MODEL",
 ];
 
 #[derive(Default)]