v1.15.2 — add Claude CLI status line, Zed support, rename 3b-review to review

- Status line: new src/statusline-claude/ (Planny box-star mascot icon),
  install/uninstall wiring in install.js, Install All (A) + Custom (S)
- Zed agent support across README, AGENTS, docs, init prompt, installer
- Rename /plan2code-3b-review to /plan2code-review (now a standalone
  utility workflow); update file, reference dir, and all cross-references
- install.js: fs.rmSync simplifications, async install, summary cleanup
- Bump to v1.15.2; CHANGELOG entries for v1.15.0/1/2

src/statusline-claude/statusline-config.json

@@ -0,0 +1,15 @@
+{
+  "autocompactBuffer": 33000,
+  "color": true,
+  "compact": false,
+  "items": {
+    "model": true,
+    "project": true,
+    "branch": true,
+    "contextBar": true,
+    "planUsage": true,
+    "linesChanged": true,
+    "duration": true,
+    "sessionCost": true
+  }
+}