feat(xsd-ingest): broaden default ingest to full Transitional bundle

[caio-pizzol]

Walks all 26 Transitional XSDs instead of just wml.xsd's import closure (12 of 26). SML, PML, VML, and several standalone shared schemas were never reaching the schema graph, so structural lookups failed on everything outside WordprocessingML. The motivating case was ds:datastoreItem, which lives in shared-customXmlDataProperties.xsd and was unreachable.

• Default entrypoints become an explicit 9-root list whose union closure covers all 26 files. Explicit over glob so stray files in the cache dir can't sneak in.
• No vocabulary.ts change: every targetNamespace the broader set declares is already registered. No spec-prose / XSD URI alias added — that's a separate concern.
• New smoke test ingests the full closure and pins floors so a regression that drops a vocabulary fails.

This ships code only. The production DB is not touched by merging. Run the ingest post-merge.

Runbook (post-merge, against production DB)

bun run xsd:fetch    # only if data/xsd-cache isn't current
bun run xsd:ingest   # uses the new default entrypoints

Expected stats from the new default closure (captured locally against a clean DB):

metric	before (wml.xsd only)	after (9 entrypoints)
documents	12	26
symbols inserted	~1,300	5,619
namespaces ensured	~7	27
inheritance edges	~300	593
compositors	~500	1,023
child edges	~1,000	3,414
local elements	~1,500	3,231
attribute edges	~500	3,307
enums	~200	3,262
unresolved (any kind)	0	0

Smoke checks after ingest:

ooxml_element ds:datastoreItem        # was missing; should resolve under .../customXml
ooxml_element x:workbook              # SML root, should resolve under sml-main
ooxml_element p:presentation          # PML root, should resolve under pml-main
ooxml_namespace                       # 27 ingested namespaces (was ~7)

Verified locally: full test suite 59 pass / 0 fail / 0 skip (smoke tests previously skipped via skipIf(!realCacheReady) now run with the cache populated).

Review: confirm the explicit entrypoint list captures the bundle you'd expect; flag if any namespace should be excluded from the default profile. Ignore: vocabulary.ts (unchanged) and ooxml-tools.ts (unchanged from PR 1).