docs(architecture): review pass: flip specs to reviewed; fix review findings
- Define the fragment-rendering convention: render targets are
registered templates composing partials; partials are composition
units (core.md, emit.md posture B)
- Define template kind; trim/restage inline rationale with ADR
citations (core.md)
- Amend ADR-008: wgsl set ownership resolved engine-owned via OQ-05's
2026-11-06 resolution
- Add OQ-09: consolidate the untracked bast-rust-codecs detailed-spec
residue (projection, error shape, writer survey) with paired tracker
task
- Fix oq-05 tracker name to match the corrected unblocking condition
- Add reviewed-transition rule: deferred OQs with tracker tasks do not
block reviewed; flip six spec docs draft -> reviewed
Verification: taskgraph validate (8 tasks valid), em-dash grep zero
hits, cargo doc --no-deps clean