feat(catalog): activate sw_reality_three_emphasis (IMP-04 Track A 7/16)

Catalog-completeness activation — NOT V4 endorsement (Codex round 49 §1+§2
guardrail). V4 signal = 0 across the current 4 MDX sample. Phase Z adds
runtime availability so V4 can route to this frame for future MDX content.

V4 remains the matching authority.

3-layer architecture (matrix §0) :
- V4 = matching authority — current sample evidence does NOT rank this frame
  for the 4 MDX. activation must not be read as V4-driven promotion.
- figma_to_html (1171281209) = source/evidence — 3-emphasis problem cards
  (토목 전문성 부족 / 비효율성 / 실무 적용 불가). full A+T+I+F+S.
- Phase Z = runtime — catalog + partial + smoke fixture added.

Builder reuse (per Codex round 49 §9 — single-frame, no batch yet) :
- `quadrant_flat_slots` reused with pad_to=3 + `emphasis_{n}_label/body`.
- `quadrant_item` parser reused.
- mapper.py unchanged.

3 file changes :

1. templates/phase_z2/families/sw_reality_three_emphasis.html
   - 3-column grid with problem-emphasis theme (red/orange/amber per
     column — frame intent is 약점/한계 진단).
   - PROMOTED CSS : per-emphasis warning color, title gradient, bullet
     markers in per-emphasis color, "!" bullet for warning semantic.
   - NOT PROMOTED : Figma source decoration / banner / texture.
     figma_to_html source evidence preserved.
   - ADAPTED : Figma absolute → flex 3-column grid, token-fixed typography.

2. templates/phase_z2/catalog/frame_contracts.yaml — F28 contract appended
   - frame_id=1171281209, family=cards, source_shape=top_bullets, strict 3,
     role_order=[emphasis_1/2/3].
   - visual_hints.min_height_px = 320.
   - accepted_content_types = [text_block].
   - payload.builder = quadrant_flat_slots (reuse) with emphasis_{n}_* keys.

3. scripts/smoke_frame_render.py — bundled fixture for F28.

Verification :
- python scripts/smoke_frame_render.py --self-check : PASS 10/10 (F28 at
  3363 chars CSS-only)
- python scripts/smoke_frame_render.py sw_reality_three_emphasis
  --render-to data/runs/imp04_f28_visual : PASS, 0 raster refs
- python run_mdx03_pipeline.py --phase-z2 --run-id imp04_f28_regression :
  PASS

scope-lock honored : V4 logic / mapper / production render / Phase R' /
AI/Kei / existing 9 partials all unchanged.

4-class status :
- class 1 readiness : ✅
- class 2 content-fit : watch (problem description text may be longer than
  3-card body budget)
- class 3 : N/A (V4-zero, catalog-completeness — not a mapping concern)
- class 4 : N/A

Refs Gitea #4 (IMP-04 Track A frame 7 — V4-zero catalog completeness)

templates/phase_z2/catalog/frame_contracts.yaml

@@ -575,3 +575,60 @@ info_management_what_how_when:
       body_key_pattern: "section_{n}_body"
       empty_label: ""
       empty_body: []
+
+
+sw_reality_three_emphasis:
+  # Reason : V4 신호 0 (4 MDX sample). 32-frame all-in scope
+  # **catalog-completeness activation** (NOT V4 endorsement, Codex round 49 §1+§2).
+  # Pattern : cards / title-plus-3-emphasis — 3 problem-emphasis cards parallel.
+  # Track A frame 7 (single-frame, Codex round 49 §9 — no batch yet).
+  # Builder 재사용 = `quadrant_flat_slots` (F11/F20/F8 pattern).
+  template_id: sw_reality_three_emphasis
+  frame_id: 1171281209
+  family: cards
+
+  source_shape: top_bullets
+  cardinality:
+    strict: 3
+    overflow_policy: abort_or_review
+
+  role_order:
+    - emphasis_1
+    - emphasis_2
+    - emphasis_3
+
+  visual_hints:
+    min_height_px: 320
+
+  accepted_content_types:
+    - text_block
+
+  sub_zones:
+    - id: emphasis_1
+      role: main_text
+      accepts: [text_block]
+      cardinality: { strict: 1 }
+      partial_target_path: ".f28b__cols > .f28b__col:nth-child(1)"
+    - id: emphasis_2
+      role: main_text
+      accepts: [text_block]
+      cardinality: { strict: 1 }
+      partial_target_path: ".f28b__cols > .f28b__col:nth-child(2)"
+    - id: emphasis_3
+      role: main_text
+      accepts: [text_block]
+      cardinality: { strict: 1 }
+      partial_target_path: ".f28b__cols > .f28b__col:nth-child(3)"
+
+  payload:
+    title:
+      source: section.title
+    builder: quadrant_flat_slots             # 재사용
+    builder_options:
+      item_parser: quadrant_item             # 재사용
+      pad_to: 3
+      truncate_at: 3
+      label_key_pattern: "emphasis_{n}_label"
+      body_key_pattern: "emphasis_{n}_body"
+      empty_label: ""
+      empty_body: []