v0.0.2: replace codebuff.com login with PlanExe auth method selector

- Add cli/src/utils/planexe-auth.ts — local auth config at ~/.config/planexe/auth.json
  - Supports: claude, codex, openrouter (BYOK), lmstudio (local)
  - OpenRouter key stored at ~/.config/planexe/openrouter-key
  - LM Studio baseUrl defaults to http://localhost:1234/v1

- Add cli/src/components/auth-method-selector.tsx — replaces LoginModal
  - Menu: 1. Claude Code  2. OpenAI Codex  3. OpenRouter API Key  4. LM Studio
  - Arrow keys / 1-4 + Enter to select
  - Claude & Codex OAuth flows preserved
  - OpenRouter: prompt for API key, persist locally
  - LM Studio: no auth, just save config and continue

- Modify cli/src/index.tsx
  - AppWithAsyncAuth checks hasPlanExeAuth() before rendering App
  - If not configured → show AuthMethodSelector
  - If configured → pass requireAuth=false to App (bypasses LoginModal)

- Update cli/release/package.json version to 0.0.2

Author: Bubba

cli/release/package.json

@@ -1,6 +1,6 @@
 {
   "name": "planexe-cli",
-  "version": "1.0.0",
+  "version": "0.0.2",
   "description": "PlanExe CLI — AI planning and coding agent",
   "license": "MIT",
   "bin": {