feat(kyberforge): make Research doc name one Research registry

validate-provenance.sh assumed `Research doc:` names a research
sources.md whose H2 headings are the source slugs, but 29 corpus entries
named topic docs and 6 values were not a single path, so checks 7 and 8
reported INFO for 36 entries and nothing ever failed.

`Research doc:` now takes exactly one path. An entry with no registry
writes `none` plus one `- **Basis:** <path>` bullet per path; each Basis
path is existence-checked unless annotated `(removed in <sha>)`.

- Check 7 FAILs when a resolved registry lacks the slug, when the value
  is a topic doc, or when it is a list. An unresolvable path stays INFO.
- Check 8 is retired: one registry serves many skills, so requiring
  every registry slug in each skill's sources.md is unsatisfiable.
- The Research doc and Basis parsers accept the inline, bullet and
  header-plus-bullets spellings, so a differently spelled field is no
  longer read as absent.

Refs: #121
ADR: 0028
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EGHFJextYtVQseaHPDDhxB

plugins/kyberforge/.apm/skills/factory-audit/scripts/lib-provenance-agent.sh

@@ -77,12 +77,13 @@ Checks performed:
   4  Contributing files back-reference the parent slug in their source_keys
   5  Research doc field present and not placeholder
 
-Agent mode has no counterpart to skill mode's checks 6, 7 and 8 (Research
-doc field / upstream forward / upstream reverse are numbered 6, 7, 8 there and
-5 here): an agent at plugin scope is a single file with a plugin-root
-sources.md, so there is no references/ tree to walk and no upstream research
-source index to cross-check. parse_status() and the sources.md-basename gate
-that those checks need exist only in lib-provenance-skill.sh.
+Agent mode has no counterpart to skill mode's checks 6 and 7 (Research doc
+field / slug in the Research registry are numbered 6 and 7 there, and the field
+check is 5 here): an agent at plugin scope is a single file with a plugin-root
+sources.md, so there is no references/ tree to walk and no Research registry to
+cross-check. The sources.md-basename gate and the Basis: check that those checks
+need exist only in lib-provenance-skill.sh. Skill mode's check 8 is retired
+(ADR-0028).
 EOF
 }