feat: smart-suggest ROI script + hook tuning + guide updates (Mar 16)

- Add examples/scripts/smart-suggest-roi.py: stdlib-only analyzer correlating
  suggestion log with session JSONL files to measure command acceptance rate.
  4 acceptance signals, tier breakdown, daily trend, --json/--since/--no-sessions CLI.
- Tune Aristote smart-suggest hook: tighten 5 over-firing triggers (/tech:commit,
  /tech:sonarqube, /tech:dupes, /check-conventions a11y, /tech:worktree)
- Guide: identity re-injection hook, context engineering maturity grid, code review
  workflow, 1M context window GA update, Spring Break promo, security audit patterns
- Resource evaluations: Nick Tune hooks (3/5), VicKayro security audit (2/5),
  Karl Mazier CLAUDE.md templates, Paul Rayner ContextFlow, Siddhant agent trace,
  Andrew Yng context hub, JP Caparas 1M context window

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

examples/scripts/README.md

@@ -27,6 +27,7 @@ Utility scripts for Claude Code power users.
 | `sync-claude-config.sh` | Sync Claude config files across machines |
 | `sonnetplan.sh` | Run Claude with Sonnet replacing Opus (cost optimization alias) |
 | `test-prompt-caching.ts` | Verify Anthropic prompt caching is active (no deps, fetch only) |
+| `smart-suggest-roi.py` | Analyze acceptance rate of smart-suggest hook suggestions vs session activity |
 
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