Bump to v0.6.0 — article discovery, search, profile tab, reader polish

Article discovery feed with Latest/Following tabs, article search
(NIP-50 + hashtag for kind 30023), Notes/Articles tab on profiles,
reading time + bookmark + like buttons on article reader. Event
passed directly from card to reader to avoid relay re-fetch failures.

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "Wrystr",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "identifier": "com.hoornet.wrystr",
   "build": {
     "beforeDevCommand": "npm run dev",