fix(local-agent): report detected agent version, not teamai-cli's own

[jeff-r2026]

Problem

buildReportPayload (the HTTP reportAndSyncLocalAgent path) set agent_version from getCurrentVersion(), which returns teamai-cli's own package version (e.g. 0.17.2). As a result every report carried the CLI's version instead of the reported agent's real version.

Observed in ~/.teamai/debug.log — a codebuddy report showed the CLI version instead of the installed CodeBuddy build:

[DEBUG] [2bcf67] [codebuddy]   body: {"agent_type":"codebuddy","agent_version":"0.17.3-beta.10", ...}

Root cause

Two report paths existed with divergent version sources:

• status-report.ts (correct): getAgentVersion(agentType) — detects the target tool's real version.
• local-agent.ts buildReportPayload (wrong): getCurrentVersion() — teamai-cli's own package version.

Fix

Switch buildReportPayload to getAgentVersion(tool), the same per-agent detector status-report.ts already uses (claude/codebuddy --version, IDE Info.plist). Unused getCurrentVersion import removed. Two-line change.

Test Plan

• npx tsc --noEmit — passes
• npx vitest run src/__tests__/local-agent.test.ts src/__tests__/status-report.test.ts — 22 passed
• npm run build — success
• End-to-end (isolated $HOME, mock HTTP endpoint via TEAMAI_HTTP_ENDPOINT, trigger hook-dispatch session-start --stdin):
  • --tool claude → report body "agent_version":"2.1.205" (matches claude --version), not 0.17.2 ✅
  • --tool codebuddy → report body "agent_version":"2.117.2" (matches codebuddy --version), not 0.17.2 ✅

🤖 Generated with Claude Code