feat(#65): IMP-36 fit/rotation generalization (u1~u8)

Generalize Phase Z frame partial responsive fit / rotation to four canonical
F13/F14/F20/F8 family partials. Surface = 13 canonical partials; 19
builder-only contracts remain explicitly out of scope.

u1  test_imp17_comment_anchor: re-pin L570->L578 (restructure+IMP-17),
    L571->L579 (IMP-29 -> IMP-47B supersession). Stage 1 red baseline gate.
u2  frame_contracts.yaml: add rotation_eligible (P1) + body_fit_pattern2 (P2)
    bool axes on 13 partial-backed contracts. P1 True: F13/F14/F20/F8 (4).
    P2 True: F23 + P1_set (5). F29 columns[1].body_parser column_plain ->
    column_with_transform (P3 parity).
u3  test_imp36_fit_rotation_generalization (NEW, 166 lines): static
    parametrized assertions for P1 metadata + CQ presence, P1 opt-out
    absence, P2 --max-body-lines + clamp + cqh, P2 opt-out absence, 19
    builder-only exclusion.
u4  three_parallel_requirements (F13): introduce f13b-root container-name +
    container-type:size + @container (aspect-ratio<1.5) rotation;
    add inline --max-body-lines + body line-height clamp/cqh/calc.
u5  three_persona_benefits (F14): f14b-root P1 + P2 cqh/jinja body fit.
    Persona colors (#285b4a/#445a2f/#743002) and circle SVG aspect 1/1
    preserved.
u6  dx_sw_necessity_three_perspectives (F20): f20b-root P1 + P2 cqh/jinja
    body fit under IMP-49 partial-fidelity lock.
u7  info_management_what_how_when (F8): f8b-root P1 + P2 cqh/jinja body fit.
u8  test_imp36_overflow_chain_self_fire (NEW, 299 lines): Selenium self-fire
    harness for F13/F14/F20/F8 at aspect 1.78 vs 1.0. Asserts line-height
    changes, font-size invariance across all 4 frames (no per-frame exempt),
    grid columns rotate 3 -> 1, OVERFLOW_CASCADE_ORDER remains 4-tuple.

Stage 4 verification (HEAD 6f1c736 pre-commit baseline):
  u1 2/2 PASS, u3 33/33 PASS, u8 9/9 PASS (live Chrome).
  Regression sweep tests/phase_z2 + tests/orchestrator_unit 335/335 PASS.
  font-size mutations introduced: 0.
  Pre-existing red (test_imp47b_step12_ai_wiring x3, ai_fallback_master_flag
  default_off x1) verified unchanged via stash swap -> not introduced.

Guardrails honored:
  - cqh / clamp / container query only (no shared margin/padding/gap shrink).
  - font-size invariant under aspect change (P2 mutates line-height +
    --max-body-lines only).
  - No cross-frame .fNb__ class borrowing (IMP-49 partial-fidelity lock).
  - F14 circle SVG aspect 1/1 untouched; persona colors preserved.
  - AI isolation: no HTML structure generation; AI calls remain zone-content.
  - 1 turn = 1 step; commit excludes .claude/settings.json and all
    out-of-scope untracked worktree per Stage 4 binding contract.

source_comment_ids: Stage 1 #13/#14; Stage 2 #21/#22; Stage 3 #4 + Codex #4
YES; Stage 4 Claude #1 + Codex #3 PASS.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/orchestrator_unit/test_imp17_comment_anchor.py

@@ -2,11 +2,20 @@
 
 Stage 1 finding: line 564 previously referenced a non-existent ID ("IMP-31").
 The legitimate slot is IMP-17 (Gitea #17, carve-out — AI fallback only, normal path 밖).
-Line 565 (IMP-29 frontend zone-level override) must remain untouched.
+The reject anchor previously referenced IMP-29 (frontend zone-level override); it has
+since been superseded by IMP-47B u1 (2026-05-21) which corrects the reject disposition
+to AI re-construction over the rank-1 reject frame.
 
 Anchor re-pin (2026-05-20, IMP-30 u1 follow-up): V4Match.provisional field added at
 src/phase_z2_pipeline.py:179-184 shifted the route-hint table down by six lines.
-Pinned line numbers updated from 564/565 → 570/571 to track the actual anchor location.
+Pinned line numbers were updated 564/565 → 570/571.
+
+Anchor re-pin (2026-05-22, IMP-36 u1 / Gitea #65 Stage 2): IMP-47B supersession at
+src/phase_z2_pipeline.py:579-582 expanded the reject hint comment by four lines, which
+shifted only the post-comment table downward. The restructure anchor itself moved from
+570 → 578 because additional comment context was inserted between the table header and
+the restructure line. Re-pinned 570 → 578 (restructure / IMP-17) and 571 → 579
+(reject / IMP-47B supersession of the prior IMP-29 reference).
 
 Run: pytest -q tests/orchestrator_unit/test_imp17_comment_anchor.py
 """
@@ -20,14 +29,17 @@ def _lines() -> list[str]:
     return PIPELINE.read_text(encoding="utf-8").splitlines()
 
 
-def test_line_570_references_imp17_not_imp31():
-    line = _lines()[569]  # 1-indexed line 570
-    assert "restructure" in line, f"line 570 anchor drifted: {line!r}"
-    assert "IMP-17" in line, f"line 570 must reference IMP-17 (carve-out): {line!r}"
-    assert "IMP-31" not in line, f"line 570 must not reference non-existent IMP-31: {line!r}"
+def test_line_578_references_imp17_not_imp31():
+    line = _lines()[577]  # 1-indexed line 578
+    assert "restructure" in line, f"line 578 anchor drifted: {line!r}"
+    assert "IMP-17" in line, f"line 578 must reference IMP-17 (carve-out): {line!r}"
+    assert "IMP-31" not in line, f"line 578 must not reference non-existent IMP-31: {line!r}"
 
 
-def test_line_571_still_references_imp29():
-    line = _lines()[570]  # 1-indexed line 571
-    assert "reject" in line, f"line 571 anchor drifted: {line!r}"
-    assert "IMP-29" in line, f"line 571 must still reference IMP-29 frontend override: {line!r}"
+def test_line_579_references_imp47b_supersession():
+    line = _lines()[578]  # 1-indexed line 579
+    assert "reject" in line, f"line 579 anchor drifted: {line!r}"
+    assert "IMP-47B" in line, (
+        f"line 579 must reference IMP-47B (supersedes prior IMP-29 reject disposition): "
+        f"{line!r}"
+    )