First-run chooser, node shutdown on switch, file picker, export path fix

- First-run: show Start Fresh / Import chooser only when single auto-created
  identity with no profile (not on every boot without a display name).
- Identity switch: shut down old node's endpoint before starting new one.
  Fixes lockup after multiple switches (zombie background tasks).
- File picker: native Browse buttons on export (folder) and import (ZIP file)
  via tauri-plugin-dialog.
- Export path: resolve relative paths against home dir (was using process cwd).
- Lightbox close: only close on overlay/image click, not inner form content.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Cargo.lock

@@ -2780,6 +2780,7 @@ dependencies = [
  "serde_json",
  "tauri",
  "tauri-build",
+ "tauri-plugin-dialog",
  "tauri-plugin-notification",
  "tokio",
  "tracing",
@@ -4632,6 +4633,30 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e061d1b48cb8d38042de4ae0a7a6401009d6143dc80d2e2d6f31f0bdd6470c7"
 
+[[package]]
+name = "rfd"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a15ad77d9e70a92437d8f74c35d99b4e4691128df018833e99f90bcd36152672"
+dependencies = [
+ "block2",
+ "dispatch2",
+ "glib-sys",
+ "gobject-sys",
+ "gtk-sys",
+ "js-sys",
+ "log",
+ "objc2",
+ "objc2-app-kit",
+ "objc2-core-foundation",
+ "objc2-foundation",
+ "raw-window-handle",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "windows-sys 0.60.2",
+]
+
 [[package]]
 name = "ring"
 version = "0.17.14"
@@ -5598,6 +5623,48 @@ dependencies = [
  "walkdir",
 ]
 
+[[package]]
+name = "tauri-plugin-dialog"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1fa4150c95ae391946cc8b8f905ab14797427caba3a8a2f79628e956da91809"
+dependencies = [
+ "log",
+ "raw-window-handle",
+ "rfd",
+ "serde",
+ "serde_json",
+ "tauri",
+ "tauri-plugin",
+ "tauri-plugin-fs",
+ "thiserror 2.0.18",
+ "url",
+]
+
+[[package]]
+name = "tauri-plugin-fs"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36e1ec28b79f3d0683f4507e1615c36292c0ea6716668770d4396b9b39871ed8"
+dependencies = [
+ "anyhow",
+ "dunce",
+ "glob",
+ "log",
+ "objc2-foundation",
+ "percent-encoding",
+ "schemars 0.8.22",
+ "serde",
+ "serde_json",
+ "serde_repr",
+ "tauri",
+ "tauri-plugin",
+ "tauri-utils",
+ "thiserror 2.0.18",
+ "toml 0.9.11+spec-1.1.0",
+ "url",
+]
+
 [[package]]
 name = "tauri-plugin-notification"
 version = "2.3.3"

crates/core/src/identity.rs

@@ -257,11 +257,10 @@ impl IdentityManager {
             anyhow::bail!("Identity {} not found", &target_hex[..12]);
         }
 
-        // Shutdown current node if running
+        // Shutdown current node before switching
         if let Some(ref node) = self.active_node {
-            info!(old = hex::encode(node.node_id), new = target_hex, "Switching identity");
+            info!(old = hex::encode(node.node_id), new = target_hex, "Switching identity — shutting down old node");
-            // Node::shutdown would go here once implemented
+            node.network.shutdown_ref().await;
-            // For now, dropping the Arc triggers cleanup when last reference is released
         }
         self.active_node = None;
         self.active_id = None;

crates/core/src/network.rs

@@ -2335,6 +2335,14 @@ impl Network {
         Ok(())
     }
 
+    /// Shutdown via Arc reference — closes the endpoint, causing all background tasks to exit.
+    pub async fn shutdown_ref(&self) {
+        if let Some(ref mapping) = self.upnp_mapping {
+            crate::upnp::remove_upnp_mapping(mapping.external_addr.port()).await;
+        }
+        self.endpoint.close().await;
+    }
+
     /// Propagate an engagement diff to all downstream holders of a post (CDN tree).
     /// Excludes the sender to avoid loops.
     pub async fn propagate_engagement_diff(

crates/tauri-app/Cargo.toml

@@ -24,4 +24,5 @@ base64 = "0.22"
 dirs = "5"
 open = "5"
 tauri-plugin-notification = "2"
+tauri-plugin-dialog = "2"
 notify-rust = "4"

crates/tauri-app/src/lib.rs

@@ -1643,6 +1643,25 @@ struct AddressInfoDto {
     status: String,    // "Public", "NAT (easy)", "NAT (hard)", "UPnP", "LAN", "Server"
 }
 
+#[tauri::command]
+async fn pick_file(app: tauri::AppHandle, title: String, filter_name: Option<String>, filter_ext: Option<Vec<String>>) -> Result<Option<String>, String> {
+    use tauri_plugin_dialog::DialogExt;
+    let mut builder = app.dialog().file().set_title(&title);
+    if let (Some(name), Some(exts)) = (filter_name, filter_ext) {
+        let ext_refs: Vec<&str> = exts.iter().map(|s| s.as_str()).collect();
+        builder = builder.add_filter(&name, &ext_refs);
+    }
+    let path = builder.blocking_pick_file();
+    Ok(path.map(|p| p.to_string()))
+}
+
+#[tauri::command]
+async fn pick_folder(app: tauri::AppHandle, title: String) -> Result<Option<String>, String> {
+    use tauri_plugin_dialog::DialogExt;
+    let path = app.dialog().file().set_title(&title).blocking_pick_folder();
+    Ok(path.map(|p| p.to_string()))
+}
+
 #[tauri::command]
 async fn get_our_info(state: State<'_, AppNode>) -> Result<OurInfoDto, String> {
     let node = get_node(&state).await;
@@ -2276,13 +2295,21 @@ async fn export_data(
         "everything" => itsgoin_core::export::ExportScope::Everything,
         _ => return Err("Invalid scope".to_string()),
     };
+    // Resolve relative paths against user's home directory
+    let resolved_dir = if std::path::Path::new(&output_dir).is_relative() {
+        dirs::home_dir()
+            .unwrap_or_else(|| std::path::PathBuf::from("."))
+            .join(&output_dir)
+    } else {
+        std::path::PathBuf::from(&output_dir)
+    };
     let result = itsgoin_core::export::export_data(
         &node.data_dir,
         &node.storage,
         &node.blob_store,
         &node.node_id,
         export_scope,
-        std::path::Path::new(&output_dir),
+        &resolved_dir,
     ).await.map_err(|e| e.to_string())?;
 
     let paths: Vec<String> = result.paths.iter()
@@ -2372,6 +2399,7 @@ pub fn run() {
     info!("Starting Tauri app");
     tauri::Builder::default()
         .plugin(tauri_plugin_notification::init())
+        .plugin(tauri_plugin_dialog::init())
         .setup(move |app| {
             // Desktop: store data next to the AppImage/executable so each copy
             // gets its own identity. Mobile: use the standard app data dir.
@@ -2407,15 +2435,17 @@ pub fn run() {
                 itsgoin_core::types::DeviceProfile::Desktop
             };
             let (node, identity_mgr) = tauri::async_runtime::block_on(async {
-                let mgr = IdentityManager::open(&data_dir, None, profile).await?;
+                let mut mgr = IdentityManager::open(&data_dir, None, profile).await?;
 
-                // If no identity exists yet, create one
                 let n = if let Some(node) = mgr.active_node() {
                     Arc::clone(node)
                 } else {
-                    // No identities at all — this is a fresh install after migration
+                    // No identity — create a temporary one so the app can start.
-                    // The IdentityManager should have either migrated or the user needs to create one
+                    // Frontend detects this via get_node_info and shows the first-run chooser.
-                    anyhow::bail!("No identity available — create one first")
+                    info!("No identity found — creating initial identity for first-run setup");
+                    let node_id = mgr.create_identity("My Identity")?;
+                    mgr.switch_identity(&node_id).await?;
+                    Arc::clone(mgr.active_node().expect("just created"))
                 };
 
                 // Start background networking
@@ -2502,6 +2532,8 @@ pub fn run() {
             sync_from_peer,
             get_network_summary,
             get_our_info,
+            pick_file,
+            pick_folder,
             get_activity_log,
             trigger_rebalance,
             request_referrals,

frontend/app.js

@@ -3372,7 +3372,10 @@ $('#export-btn').addEventListener('click', () => {
             </div>
             <div style="margin-bottom:0.75rem">
                 <label style="font-size:0.75rem;color:#888">Save to folder:</label>
-                <input id="export-output-dir" type="text" value="Downloads" style="width:100%;margin-top:0.25rem;font-size:0.8rem" />
+                <div style="display:flex;gap:0.25rem;margin-top:0.25rem">
+                    <input id="export-output-dir" type="text" value="Downloads" style="flex:1;font-size:0.8rem" />
+                    <button class="btn btn-ghost btn-sm" id="export-browse">Browse</button>
+                </div>
                 <p style="font-size:0.65rem;color:#555;margin-top:0.2rem">Relative to your home directory, or absolute path</p>
             </div>
             <div style="display:flex;gap:0.5rem;justify-content:center">
@@ -3406,6 +3409,12 @@ $('#export-btn').addEventListener('click', () => {
             overlay.querySelector('#export-go').disabled = false;
         }
     });
+    overlay.querySelector('#export-browse').addEventListener('click', async () => {
+        try {
+            const path = await invoke('pick_folder', { title: 'Choose export folder' });
+            if (path) overlay.querySelector('#export-output-dir').value = path;
+        } catch (_) {}
+    });
     overlay.querySelector('#export-cancel').addEventListener('click', () => overlay.remove());
     overlay.addEventListener('click', (e) => { if (e.target === overlay) overlay.remove(); });
 });
@@ -3418,8 +3427,11 @@ $('#import-btn').addEventListener('click', () => {
     overlay.innerHTML = `
         <div style="background:#1a1a2e;border:1px solid #333;border-radius:12px;padding:1.5rem;max-width:420px;width:90%;text-align:center">
             <h3 style="color:#7fdbca;margin:0 0 0.75rem">Import Data</h3>
-            <p style="font-size:0.75rem;color:#888;margin-bottom:0.75rem">Enter the path to an ItsGoin export ZIP file.</p>
+            <p style="font-size:0.75rem;color:#888;margin-bottom:0.75rem">Select an ItsGoin export ZIP file.</p>
-            <input id="import-zip-path" type="text" placeholder="/path/to/itsgoin-export.zip" style="width:100%;margin-bottom:0.75rem;font-size:0.8rem" />
+            <div style="display:flex;gap:0.25rem;margin-bottom:0.75rem">
+                <input id="import-zip-path" type="text" placeholder="/path/to/itsgoin-export.zip" style="flex:1;font-size:0.8rem" />
+                <button class="btn btn-ghost btn-sm" id="import-browse">Browse</button>
+            </div>
             <div id="import-summary-box" style="display:none;text-align:left;background:#111;border-radius:8px;padding:0.75rem;margin-bottom:0.75rem;font-size:0.75rem"></div>
             <div id="import-action-box" style="display:none;text-align:left;margin-bottom:0.75rem">
                 <label class="checkbox-label" style="font-size:0.8rem"><input type="radio" name="import-action" value="add_identity" /> Add as new identity (requires key in export)</label>
@@ -3438,6 +3450,13 @@ $('#import-btn').addEventListener('click', () => {
         </div>`;
     document.body.appendChild(overlay);
 
+    overlay.querySelector('#import-browse').addEventListener('click', async () => {
+        try {
+            const path = await invoke('pick_file', { title: 'Select export ZIP', filterName: 'ZIP files', filterExt: ['zip'] });
+            if (path) overlay.querySelector('#import-zip-path').value = path;
+        } catch (_) {}
+    });
+
     overlay.querySelector('#import-preview').addEventListener('click', async () => {
         const zipPath = overlay.querySelector('#import-zip-path').value.trim();
         if (!zipPath) { toast('Enter a ZIP path'); return; }
@@ -3646,9 +3665,39 @@ async function init() {
             }
         }
         const info = await loadNodeInfo();
+        // Show first-run chooser only if no profile AND only one identity (auto-created)
+        let isFirstRun = false;
         if (info && !info.hasProfile) {
+            try {
+                const ids = await invoke('list_identities');
+                isFirstRun = ids.length <= 1;
+            } catch (_) {}
+        }
+        if (isFirstRun) {
+            // First-run chooser: start fresh or import
+            const chooser = document.createElement('div');
+            chooser.className = 'image-lightbox';
+            chooser.style.cursor = 'default';
+            chooser.innerHTML = `
+                <div style="background:#1a1a2e;border:1px solid #333;border-radius:12px;padding:2rem;max-width:360px;width:90%;text-align:center">
+                    <h2 style="color:#7fdbca;margin:0 0 0.5rem">Welcome to ItsGoin</h2>
+                    <p style="color:#888;font-size:0.85rem;margin-bottom:1.5rem">How would you like to get started?</p>
+                    <div style="display:flex;flex-direction:column;gap:0.75rem">
+                        <button id="first-run-new" class="btn btn-primary" style="padding:0.75rem">Start Fresh</button>
+                        <button id="first-run-import" class="btn btn-ghost" style="padding:0.75rem">Import an Identity</button>
+                    </div>
+                </div>`;
+            document.body.appendChild(chooser);
+            chooser.querySelector('#first-run-new').addEventListener('click', () => {
+                chooser.remove();
                 setupOverlay.classList.remove('hidden');
                 setupName.focus();
+            });
+            chooser.querySelector('#first-run-import').addEventListener('click', () => {
+                chooser.remove();
+                // Open the import wizard
+                document.getElementById('import-btn')?.click();
+            });
         }
         // Pre-load feed + messages from local DB (instant — no network needed)
         await loadFeed(true).catch(() => {});