Apply changes from tsk_GXDoc3Cs07Rn (conflict rescue: original auto-merge
blocked by uncommitted changes on main; worktree was clean, no code conflicts).
Changes applied verbatim from b64c002:
- server/CONVENTIONS.md: new file — mandatory coding conventions
- server/internal/apierr: add New(), StatusFor(), ErrUnauthorized/Forbidden/
NotFound/Conflict predefined errors, chi Middleware; add apierr_test.go (8 tests)
- server/internal/idgen: implement idgen.go (UUID v7 + Crockford Base32 moved
from codes); add idgen_test.go (12 tests)
- server/internal/codes/generator.go: refactor to delegate to idgen.*
- server/go.mod: move google/uuid from indirect to direct dependency
All tests pass: go test ./internal/apierr/... ./internal/idgen/... ./internal/codes/...
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
wangjia
25e0204471