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

plan2code-metrics/README.md

@@ -6,7 +6,7 @@ Recursive self-improvement toolchain for plan2code contributors. Collects metric
 
 ```bash
 # Install (one-time, from the plan2code root)
-node install.js            # → "I" (Install All) includes metrics
+node install.js            # → "A" (Install All + dev tools) includes metrics
                            # → or "M" (Metrics only) under the CUSTOM sub-menu
 
 # After finishing any project spec (steps 1-4):
@@ -78,7 +78,7 @@ From the plan2code repo root:
 node install.js
 ```
 
-Choose **I** (Install All) to install prompts, loop CLI, and metrics together. Or choose **C** (Custom) then **M** (Metrics) to install just the metrics CLI.
+Choose **A** (Install All + dev tools) to install prompts, loop CLI, bot, metrics, and status line together. Or choose **C** (Custom) then **M** (Metrics) to install just the metrics CLI.
 
 The installer handles `npm install`, `npm run build`, and global linking automatically. After install, `plan2code-metrics` is available from any directory.