fix(lessons): resolve land-race with ORCH-100 — renumber ADR 0033→0034

Merge-gate auto_rebase_onto_main bounced this branch back: ORCH-100 landed
in main first and claimed global ADR number adr-0033 (adr-0033-sidecar-watchdog),
while this branch had created adr-0033-lessons-journal. Resolved the genuine
land race:

- rebased feature/ORCH-098-fnd onto current origin/main (linear history)
- resolved docs/architecture/README.md component-list conflict — both the
  Lessons-journal and Sidecar-watchdog bullets now coexist
- renamed docs/architecture/adr/adr-0033-lessons-journal.md →
  adr-0034-lessons-journal.md (next free global ADR number) + fixed the
  in-file header
- updated all cross-references (CLAUDE.md, README.md, work-item ADR-001,
  12-review.md) 0033→0034 for the lessons journal; ORCH-100's adr-0033
  (sidecar) left intact
- recovered the ORCH-098 CHANGELOG entry silently dropped by the rebase
  auto-merge (now above ORCH-100, ADR ref corrected to 0034)

No code semantics changed; src/** auto-merged cleanly (ORCH-100 did not
touch src/**). ruff: n/a locally (CI). pytest tests/ -q: 1630 passed.

Refs: ORCH-098
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/architecture/adr/adr-0034-lessons-journal.md

@@ -7,7 +7,7 @@ created_at: 2026-06-10
 model_used: claude-opus-4-8
 ---
 
-# adr-0033: Машинный журнал уроков — таблица `lessons` + observer-leaf (ORCH-098)
+# adr-0034: Машинный журнал уроков — таблица `lessons` + observer-leaf (ORCH-098)
 
 ## Статус
 Proposed