Same-frame F1 follow-up per Codex round 43 (#15527). matrix §4.1 Fix 7
4-class F1 path (no Track A pause, small fixes + Codex re-review).
Three fixes :
1. F1-a — explicit col_a/col_b label defaults
- Previous (c7b0f5b) used empty defaults `col_a_label_default: ""` /
`col_b_label_default: ""`, so an upstream MDX path without explicit
column headers would render blank header cells.
- Fix : set `col_a_label_default: "BIM"` and `col_b_label_default: "DX"`
in F18 contract. Frame intent is the BIM-vs-DX comparison, so the
headers are semantic and must not silently become blank.
2. F1-b — narrow prefix-stripping aliases (parser → builder option)
- Previous parser used a broad regex
`^[A-Za-z가-힣]{1,8}\s*:\s*(.+)$` to strip any short prefix before
`:`. That could accidentally remove meaningful Korean/English
prefixes from real cell content.
- Fix : remove auto-stripping from `parse_compare_row_2col_item`.
Stripping is now configurable via builder option
`strip_col_prefix_aliases: [<list of exact aliases>]` and applied
by `_build_compare_table_2col`. F18 contract uses `["BIM", "DX"]`,
so only `BIM:` / `DX:` (with optional fullwidth `：`) prefixes are
stripped; other Korean/English colons in real content stay intact.
- Parser signature unchanged. Builder is the single place that owns
the stripping policy.
3. F1-c — cardinality semantic clarification
- Previous top-level `cardinality.strict: 2` was ambiguous: it could
be read as `row strict: 2`. Rows are actually `1..12` via
`sub_zones.rows.cardinality`.
- Fix : add YAML comment that the top-level strict 2 = column count
(col_a / col_b), not row count. Per-sub_zone cardinality remains
authoritative for rows.
Verification :
- python -m py_compile src/phase_z2_mapper.py : PASS
- python scripts/smoke_frame_render.py --self-check : PASS 7/7 (F18
fixture rendered unchanged at 4211 chars; smoke harness only loaded
the partial, builder/parser logic not directly exercised in smoke)
- Manual builder/parser invocation test with synthetic units :
- col_a_label / col_b_label resolve to "BIM" / "DX" defaults.
- `BIM: Only 3D` → `Only 3D` (alias-stripped).
- `DX: BIM << DX (ENG. 포함)` → `BIM << DX (ENG. 포함)` (alias-stripped).
- `분야별 단절` → `분야별 단절` (no BIM/DX prefix, untouched).
- This matches the F1-b narrow-alias intent.
- python scripts/smoke_frame_render.py bim_dx_comparison_table
--render-to data/runs/imp04_f18_visual_r2 : PASS, R3 artifact written
with same character count, generic viewer title.
scope-lock honored : no V4 logic, no new builder/parser added (only
behavior refinement of existing F18 builder/parser/contract), no other
partial, no Phase Z production render, no Phase R'/AI/Kei changes.
4-class status (F18 post-F1) :
- class 1 readiness : adapter cleanup complete — defaults explicit,
aliases narrow, cardinality semantically clear.
- class 2 content-fit : still a watch item (long Korean wrapping,
6+ rows). max_rows=12 protection unchanged.
- class 3 / 4 : N/A.
Refs Gitea #4 (IMP-04 Track A frame 4 — F1 follow-up per Codex round 43)
kyeongmin
f7a9240fe5