[siracozmen01]

Problem

.github v0.0.50 and v0.0.51 add one rule to the family conventions, on state a caller holds (Rawframe-Project/.github#119 and #120). This library still carried v0.0.48's maul-conventions.md, so the nightly family check reported it as differing.

Change

• The family files are synced to v0.0.51 (family_sync.py --write). Only docs/internals/maul-conventions.md changes, by the rule's one paragraph.
• Every reusable workflow pin moves to v0.0.51 (972ea41). No script or workflow changed since v0.0.48.

The library follows the rule. The audit is #297: the only structs a call takes back that point into the library's data are clip tracks and timings, which the values layer reads as caller-built input. #299 documents them that way.

Change of results

None.

Verification

• family_sync.py --check at v0.0.51 reports 0 differences.
• tools/check.sh changed passes; no test is reached by the changes.
• The organization's docs check passes.

Closes #300

[siracozmen01]

Review at a9a5b66. No changes needed. Read, not run. The checks were pending when I looked, so this approval assumes they pass.

• The only content change is the conventions. docs/internals/maul-conventions.md goes from 7144b88 (v0.0.48) to 80f34b2, the canonical blob at 972ea41, by the one rule line from .github #119 and #120. The other three files change only .github pins.
• Pins. All eight .github references move from 7eeaaa4 (v0.0.48) to the full 972ea41 sha: changes, docs-check, zizmor, cpp twice and cache-prune in ci.yml, plus pr-gate.yml and pr-title.yml.
• tidy_filter.sh. tools/tidy_filter.sh at this head is d61928e, the canonical blob, and AGENTS.md line 30 lists it.