chore(release): reconcile main with v0.15.0 (#8635)

Bring in what v0.15.0 shipped: the 0.15.0 entry in CHANGELOG.md and
CHANGELOG.zh-CN.md exactly as tagged (replacing the 0.15.0-beta.1 series
entry), version 0.15.0 across package.json/package-lock.json, the F-Droid
changelogs 150001-150004.txt, and the matching Nix npm deps hash.

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@getpaseo/cli",
-  "version": "0.15.0-beta.1",
+  "version": "0.15.0",
   "description": "Paseo CLI - control your AI coding agents from the command line",
   "bin": {
     "paseo": "bin/paseo"
@@ -28,9 +28,9 @@
   },
   "dependencies": {
     "@clack/prompts": "^1.0.0",
-    "@getpaseo/client": "0.15.0-beta.1",
-    "@getpaseo/protocol": "0.15.0-beta.1",
-    "@getpaseo/server": "0.15.0-beta.1",
+    "@getpaseo/client": "0.15.0",
+    "@getpaseo/protocol": "0.15.0",
+    "@getpaseo/server": "0.15.0",
     "chalk": "^5.3.0",
     "commander": "^12.0.0",
     "mime-types": "^2.1.35",