Removes ~110 files of process noise (all preserved in git history):
.planning/ (GSD-era phases/quick-plans/issue-clusters; workflow retired
2026-07-08), specs/ (spec-kit specs for shipped features 001-007),
design/ (pre-React ASCII mockups), research/ (legacy Gradio archive),
and .agents/ (rules for a third-party agent tool no longer in use).
The four load-bearing decision docs move to docs/adr/ with an archival
note; every live pointer follows (gguf engine module docs + quant_map,
inject-apprun.sh, pyproject/test comments, fixture README + its seed
script — kept byte-identical). The CJK allowlist drops the deleted
legacy_gradio entries; STRUCTURE.md and ROADMAP.md document the removal
instead of linking into it.
Backend suite: 2891 passed.
Co-authored-by: mergetest <test@local>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
