git:20260205.ba22275 to git:20260205.ef631f0

2 added, 5 removed. Audit A to A.

- <INSTRUCTIONS>

## Repository Policy (Split-in-Progress)

- **Main repo must keep full functionality** (scripts, data, and `skills/` archive stay).

- **Core repo** hosts index + site; **Data repo** hosts archived skill files.

- Updates should continue to flow to **all three repos** as needed.

## Case-Conflict Policy (Required)

- The filesystem is case-insensitive for many users. **No paths may differ only by case**.

- - When a name conflicts case-insensitively, **append repo suffix**:

- - Format: `{name}-{owner}-{repo}` (e.g., `annualreports-acme-tools`)

- - If repo is unavailable, fall back to `{name}-{short-hash}` (no `__dup`).

+ - When a name conflicts case-insensitively, **append a stable suffix**:

+ - Format: `__dup-<short-hash>` (e.g., `annualreports__dup-1a2b3c4d`)

- Use `normalize_name()` and `ensure_unique_dir()` for all skill directory creation.

- Do **not** remove skills to resolve conflicts; **rename** with suffixes instead.

## Non-Compatibility Rule

- Backward compatibility for historical directory names is **not required**.

- Prefer correctness and conflict-free paths over preserving old casing.

- </INSTRUCTIONS>