peptiderepo fe8c242a64 Opik Wave 1 Commit 3: Version bump, docs, and hook registration ...

Version & Changelog:
- prautoblogger.php: 0.11.0 → 0.12.0
- Add Opik PHP constants (PRAUTOBLOGGER_OPIK_API_KEY, WORKSPACE, URL_OVERRIDE)
  with fallback empty defaults so wp-config.php can override
- CHANGELOG.md: v0.12.0 section describing Wave 1 scope, feature flag,
  observability benefits, cost model, and Wave 2 preview

Documentation:
- ARCHITECTURE.md: New 'Opik LLM Observability (Optional)' section with
  feature-flag design, credential isolation, span lifecycle, call sites,
  cost/performance implications, and code structure overview
- CONVENTIONS.md: Step-by-step guide 'Instrumenting a New LLM Call Site'
  with code examples, key rules (no full prompts, async dispatch, separate
  cost tracking), and minimal instrumentation pattern

Hook Registration:
- class-prautoblogger.php: Register 'prautoblogger_opik_dispatch' cron action
  * Instantiates Opik_Client, Opik_Span_Queue, Opik_Dispatcher
  * Checks credentials and calls dispatcher->dispatch()
  * Updates 'prautoblogger_opik_last_dispatch' option for admin status display
- Instantiate Opik_Settings in admin_init for admin UI registration

All changes preserve ≤ 300-line files.

Part of Wave 1 (observability skeleton).
Target: v0.12.0

2026-04-23 14:51:51 +00:00

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