feat: add cron trigger to keep /api/config KV cache warm

- Add scheduled() handler: runs every 5 min, refreshes currentStrategies cache
- Uses existing RUNTIME_SETTINGS_DISPATCH_TOKEN (no user auth needed)
- Add [triggers] crons to wrangler.toml.example
- Combined with SWR pattern: users never wait for GitHub API

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Pigbibi

web/strategy-switch-console/worker.js

@@ -156,6 +156,25 @@ export default {
       return json({ ok: false, error: error.message || "unexpected error" }, error.status || 500);
     }
   },
+
+  // Cron trigger: keep the current-strategies KV cache warm so
+  // users never wait for GitHub API on the /api/config endpoint.
+  async scheduled(event, env, ctx) {
+    if (!hasConfigStore(env)) return;
+    const token = env.RUNTIME_SETTINGS_DISPATCH_TOKEN;
+    if (!token) return;
+
+    try {
+      const accountConfig = await loadAccountOptionsConfig(env);
+      const strategies = await loadCurrentStrategiesSafely(accountConfig.options, env);
+      await writeConfigJson(env, CURRENT_STRATEGIES_CACHE_KEY, {
+        ts: Date.now(),
+        data: strategies,
+      });
+    } catch {
+      // Silently skip — next user request will populate cache via SWR
+    }
+  },
 };
 
 class HttpError extends Error {

web/strategy-switch-console/wrangler.toml.example

@@ -28,6 +28,11 @@ RUNTIME_SETTINGS_REF = "main"
 # STRATEGY_SWITCH_SCHWAB_REPO = "your-org/CharlesSchwabPlatform"
 # STRATEGY_SWITCH_FIRSTRADE_REPO = "your-org/FirstradePlatform"
 
+# Cron trigger: refresh KV cache so /api/config never blocks on GitHub API.
+# Runs every 5 minutes. Remove this block if you don't need cache warming.
+[triggers]
+crons = ["*/5 * * * *"]
+
 # Bind this namespace to enable editable /admin login and account management.
 # Without it, /admin is read-only and the Worker falls back to secrets.
 # [[kv_namespaces]]