feat(console,src-tauri): local "Config folder" setting (studio#128)

console/index.html

@@ -273,6 +273,19 @@
               explicit auth error, not a silent drift.
             </p>
           </form>
+          <div class="config-folder">
+            <label>Config folder</label>
+            <div class="config-folder-row">
+              <span class="config-folder-path" id="config-folder-path">— not set —</span>
+              <button class="cfg-btn cfg-btn-ghost" id="config-folder-pick" type="button">Choose folder…</button>
+            </div>
+            <p class="config-hint">
+              Local folder the New Fleet wizard mirrors each agent's generated
+              config.toml into (<code>&lt;folder&gt;/&lt;agent-name&gt;/config.toml</code>),
+              alongside the S3 copy it deploys from — this is what "view an
+              agent's config" reads from, no S3 round-trip.
+            </p>
+          </div>
         </div>
       </aside>
     </main>

console/src/main.ts

@@ -174,6 +174,47 @@ const mcp = mcpEl ? createPane(mcpEl, () => flag("mcpio")) : null;
   });
 })();
 
+// Local "Config folder" (studio#128) — where the New Fleet wizard mirrors
+// each agent's generated config.toml (alongside the S3 copy it deploys
+// from) and where the "view an agent's config" screen reads from, no S3
+// round-trip. Persisted like the theme/log-level settings above
+// (localStorage), not Tauri's app-config-dir — this setting *points at*
+// other local files, storing it in the hidden config dir would just be an
+// extra layer of indirection for no reason.
+(function setupConfigFolder(): void {
+  const pathEl = document.getElementById("config-folder-path");
+  const pickBtn = document.getElementById("config-folder-pick");
+  if (!pathEl || !pickBtn) return;
+  const KEY = "oab-studio.configFolder";
+
+  const render = (): void => {
+    let saved: string | null = null;
+    try {
+      saved = localStorage.getItem(KEY);
+    } catch {
+      /* storage unavailable — falls through to the placeholder */
+    }
+    pathEl.textContent = saved || "— not set —";
+  };
+  render();
+
+  pickBtn.addEventListener("click", () => {
+    const invoke = tauriInvoke();
+    if (!invoke) return;
+    invoke<string | null>("plugin:dialog|open", { options: { directory: true } })
+      .then((path) => {
+        if (!path) return;
+        try {
+          localStorage.setItem(KEY, path);
+        } catch {
+          /* storage unavailable — the choice still applies this session */
+        }
+        render();
+      })
+      .catch((e) => note("error", `config folder pick failed: ${errText(e)}`));
+  });
+})();
+
 // Build stamp (injected by vite) — shown under the brand and logged on launch,
 // so it's obvious which commit this build is.
 const BUILD = `v${__APP_VERSION__} · ${__BUILD_SHA__}`;

console/src/styles.css

@@ -1244,6 +1244,38 @@ button.act:disabled {
   color: var(--muted);
 }
 
+.config-folder {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  max-width: 420px;
+  margin-top: 20px;
+  padding-top: 16px;
+  border-top: 1px solid var(--border);
+}
+.config-folder > label {
+  font-size: 12px;
+  color: var(--muted);
+}
+.config-folder-row {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+.config-folder-path {
+  flex: 1;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  font-size: 12px;
+  color: var(--text);
+  padding: 6px 8px;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--bg);
+}
+
 /* Compose (agent-deployment ADR, slice 1): the deploy panel's bundle-preview
    step (`deploy.ts`'s `#deploy-compose`) — the standalone authoring tab this
    used to also style is gone, see compose.ts. */

src-tauri/Cargo.toml

@@ -55,6 +55,11 @@ tauri-plugin-updater = "2"
 # commit rather than the floating `dev` branch for reproducibility.
 fix-path-env = { git = "https://github.com/tauri-apps/fix-path-env-rs", rev = "c4c45d503ea115a839aae718d02f79e7c7f0f673" }
 
+# Native folder-picker dialog (studio#128) — lets the operator choose the
+# local "Config folder" the New Fleet wizard mirrors generated config.toml
+# files into, instead of a hidden hardcoded path.
+tauri-plugin-dialog = "2"
+
 # Its own workspace so the desktop build stays out of the root workspace's
 # `cargo build --workspace` (kept to the small crates + CI).
 [workspace]

src-tauri/capabilities/default.json

@@ -9,6 +9,7 @@
     "core:default",
     "shell:allow-stdin-write",
     "shell:allow-kill",
+    "dialog:allow-open",
     {
       "identifier": "shell:allow-spawn",
       "allow": [

src-tauri/src/lib.rs

@@ -773,6 +773,7 @@ pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_shell::init())
         .plugin(tauri_plugin_updater::Builder::new().build())
+        .plugin(tauri_plugin_dialog::init())
         .setup(|app| {
             if cfg!(debug_assertions) {
                 app.handle().plugin(