feat(style-acq T14): שער-יו"ר לאישור הצעות-curator → הטמעה לפרופיל

סוגר את הלולאה מקצה-לקצה (INV-G10/LRN1): ה-curator מציע (status=analyzed),
היו"ר מאשרת, והלקחים נכתבים לערוצים שהכותב צורך (T15) — אין auto-commit.

- db.get_draft_final_pair(id) — שורת-פנקס מלאה כולל analysis.
- app.py: GET /api/learning/pairs/{id} (חושף רק changes מסוג style_method —
  INV-LRN5) + POST .../promote (לקחים→discussion_rules['universal'],
  ביטויים→transition_phrases['universal'] דרך merge ל-appeal_type_rules;
  status→lessons_folded). _append_methodology_override משותף.
- web-ui: usePairDetail/usePromoteLearning + ProposalReview (בחירת לקחים/
  ביטויים לאימוץ) בטאב "למידה" עבור pairs במצב analyzed.

INV-G10 (שער-יו"ר) · INV-LRN1 (אין auto-commit) · INV-LRN5 (טוהר).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/app.py

@@ -4151,6 +4151,93 @@ async def api_learning_style_distance(case_number: str):
     return await _sd.style_distance(case_number)
 
 
+def _coerce_json(raw):
+    if isinstance(raw, str):
+        try:
+            return json.loads(raw)
+        except (json.JSONDecodeError, TypeError):
+            return None
+    return raw
+
+
+@app.get("/api/learning/pairs/{pair_id}")
+async def api_learning_pair_detail(pair_id: str):
+    """פירוט שורת-פנקס כולל הצעת-הדיסטילציה (analysis) לאישור יו"ר (T14)."""
+    try:
+        pid = UUID(pair_id)
+    except ValueError:
+        raise HTTPException(400, "pair_id לא תקין")
+    p = await db.get_draft_final_pair(pid)
+    if not p:
+        raise HTTPException(404, "לא נמצא")
+    analysis = _coerce_json(p.get("analysis")) or {}
+    # surface only style_method changes (INV-LRN5 — substance never enters the voice)
+    changes = [c for c in analysis.get("changes", []) if c.get("domain") == "style_method"]
+    return {
+        "id": str(p["id"]),
+        "case_number": p.get("case_number") or "",
+        "title": p.get("title") or "",
+        "status": p.get("status") or "",
+        "diff_stats": _coerce_json(p.get("diff_stats")),
+        "overall_assessment": analysis.get("overall_assessment", ""),
+        "changes": changes,
+        "new_expressions": analysis.get("new_expressions", []),
+    }
+
+
+class PromoteLearningRequest(BaseModel):
+    lessons: list[str] = []   # style_method lessons → discussion_rules['universal']
+    phrases: list[str] = []   # new transition phrases → transition_phrases['universal']
+
+
+async def _append_methodology_override(category: str, key: str, items: list[str]) -> None:
+    """Read current (override-or-default) list value, append new items, upsert override.
+    Shared by the T14 approval gate to fold approved learnings into writer-consumed channels."""
+    pool = await db.get_pool()
+    row = await pool.fetchrow(
+        "SELECT rule_value FROM appeal_type_rules "
+        "WHERE appeal_type = '_global' AND rule_category = $1 AND rule_key = $2",
+        category, key,
+    )
+    if row:
+        current = _coerce_json(row["rule_value"]) or []
+    else:
+        current = list(_METHODOLOGY_DEFAULTS.get(category, {}).get(key, []))
+    if not isinstance(current, list):
+        current = []
+    merged = current + [s for s in items if s and s not in current]
+    await pool.execute(
+        "INSERT INTO appeal_type_rules (id, appeal_type, rule_category, rule_key, rule_value) "
+        "VALUES (gen_random_uuid(), '_global', $1, $2, $3::text::jsonb) "
+        "ON CONFLICT (appeal_type, rule_category, rule_key) DO UPDATE SET rule_value = $3::text::jsonb",
+        category, key, json.dumps(merged, ensure_ascii=False),
+    )
+
+
+@app.post("/api/learning/pairs/{pair_id}/promote")
+async def api_learning_promote(pair_id: str, req: PromoteLearningRequest):
+    """שער-יו"ר (INV-G10/LRN1): מאשר לקחי-סגנון + ביטויי-מעבר מהצעת-הדיסטילציה
+    ומטמיע אותם בערוצים שהכותב צורך (methodology overrides → T15). מקדם status."""
+    try:
+        pid = UUID(pair_id)
+    except ValueError:
+        raise HTTPException(400, "pair_id לא תקין")
+    p = await db.get_draft_final_pair(pid)
+    if not p:
+        raise HTTPException(404, "לא נמצא")
+
+    if req.lessons:
+        await _append_methodology_override("discussion_rules", "universal", req.lessons)
+    if req.phrases:
+        await _append_methodology_override("transition_phrases", "universal", req.phrases)
+
+    await db.update_draft_final_pair(pid, status="lessons_folded")
+    return {
+        "id": pair_id, "status": "lessons_folded",
+        "folded_lessons": len(req.lessons), "folded_phrases": len(req.phrases),
+    }
+
+
 # ── Skill Management API ───────────────────────────────────────────