Bump to v0.6.1 — native file upload, mention names, connection stability

- Native file picker (+) in compose box uploads via Rust backend (reqwest)
- Pasting a local file path auto-uploads instead of inserting text
- @mentions resolve to profile display names via useProfile hook
- Connection indicator uses 15s grace period before showing offline
- Upload uses correct nostr.build v2 API; Rust-side multipart for native picks
- Content parser extracted to src/lib/parsing.ts

src-tauri/src/lib.rs

@@ -37,6 +37,51 @@ fn delete_nsec(pubkey: String) -> Result<(), String> {
     }
 }
 
+// ── File upload ─────────────────────────────────────────────────────────────
+
+#[tauri::command]
+async fn upload_file(path: String) -> Result<String, String> {
+    let file_bytes = std::fs::read(&path).map_err(|e| format!("Failed to read file: {e}"))?;
+    let file_name = std::path::Path::new(&path)
+        .file_name()
+        .and_then(|n| n.to_str())
+        .unwrap_or("file")
+        .to_string();
+    let mime = mime_guess::from_path(&path)
+        .first_or_octet_stream()
+        .to_string();
+
+    let part = reqwest::multipart::Part::bytes(file_bytes)
+        .file_name(file_name)
+        .mime_str(&mime)
+        .map_err(|e| format!("MIME error: {e}"))?;
+    let form = reqwest::multipart::Form::new().part("file", part);
+
+    let client = reqwest::Client::new();
+    let resp = client
+        .post("https://nostr.build/api/v2/upload/files")
+        .multipart(form)
+        .send()
+        .await
+        .map_err(|e| format!("Upload request failed: {e}"))?;
+
+    if !resp.status().is_success() {
+        return Err(format!("Upload failed (HTTP {})", resp.status()));
+    }
+
+    let data: serde_json::Value = resp
+        .json()
+        .await
+        .map_err(|e| format!("Failed to parse response: {e}"))?;
+
+    if data["status"] == "success" {
+        if let Some(url) = data["data"][0]["url"].as_str() {
+            return Ok(url.to_string());
+        }
+    }
+    Err(data["message"].as_str().unwrap_or("Upload failed — no URL returned").to_string())
+}
+
 // ── SQLite note/profile cache ────────────────────────────────────────────────
 
 struct DbState(Mutex<Connection>);
@@ -142,6 +187,8 @@ pub fn run() {
         .plugin(tauri_plugin_updater::Builder::new().build())
         .plugin(tauri_plugin_process::init())
         .plugin(tauri_plugin_http::init())
+        .plugin(tauri_plugin_dialog::init())
+        .plugin(tauri_plugin_fs::init())
         .setup(|app| {
             // ── SQLite ───────────────────────────────────────────────────────
             let data_dir = app.path().app_data_dir()?;
@@ -203,6 +250,7 @@ pub fn run() {
             store_nsec,
             load_nsec,
             delete_nsec,
+            upload_file,
             db_save_notes,
             db_load_feed,
             db_save_profile,