docs(rename): kb → kebab — README, tasks/, docs/, design doc, report

마지막 commit. 모든 .md 안의 `kb` 단어 일괄 갱신.

- 19 개 crate 이름 (`kb-core`, `kb-app`, …) → `kebab-*` (Rust 모듈
  path 표기 `kb_*` → `kebab_*` 포함).
- 미래 component (`kb-tui`, `kb-desktop`, `kb-asr-whisper`, `kb-ocr`,
  `kb-mcp`, `kb-vlm`, `kb-rerank`, `kb-vision-ocr`, `kb-index`,
  `kb-smoke`, `kb-architecture`) → `kebab-*` (P6+ 가 시작될 때
  같은 prefix 사용).
- CLI 명령 예제: `kb ingest` / `kb search` / `kb ask` / `kb init` /
  `kb doctor` / `kb inspect` / `kb list` / `kb eval` →
  `kebab <verb>`. fenced code block + 인라인 backtick 모두.
- XDG paths + env vars + binary 경로 (`target/release/kb` →
  `target/release/kebab`) 동기화.
- design doc / 최초 보고서 / SMOKE / HOTFIXES / phase epic / task
  spec 모든 reference 통일.
- task-decomposition.md 의 `git -c user.name=kb` 는 과거 git history
  기록용 author 정보라 그대로 유지 (실제 git history 의 author 는
  변경 불가).
- `tasks/phase-5-evaluation.md` 의 `status: planned` →
  `completed` 도 같이 (P5-1 + P5-2 PR 머지 후 미반영분).

## 검증

- `grep -rEn "\bkb-[a-z]|\bkb_[a-z]|\.config/kb\b|kb\.sqlite|\bKB_[A-Z]"
   --include="*.md"` 0 hits (task-decomposition.md 의 git author
  제외).
- 모든 file path reference 살아있음 (renamed file 들 모두 새 path
  로 update).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/spec/ai-generation-guidelines.md

@@ -5,8 +5,8 @@ When implementing tasks against this codebase:
 - Treat the frozen design doc as the single source of truth. Do not invent
   new fields, traits, or enum variants.
 - Prefer editing existing files to creating new ones; reuse types from
-  `kb-core` instead of duplicating shapes.
+  `kebab-core` instead of duplicating shapes.
 - For each task, follow the task spec under `tasks/p<N>/p<N>-<i>.md`.
 
 Canonical source:
-[docs/superpowers/specs/2026-04-27-kb-final-form-design.md](../superpowers/specs/2026-04-27-kb-final-form-design.md), §11 + §12.
+[docs/superpowers/specs/2026-04-27-kebab-final-form-design.md](../superpowers/specs/2026-04-27-kebab-final-form-design.md), §11 + §12.

docs/spec/canonical-document.md

@@ -4,4 +4,4 @@ Medium-agnostic representation of a document with `Block`s, `SourceSpan`s,
 and provenance.
 
 Canonical source:
-[docs/superpowers/specs/2026-04-27-kb-final-form-design.md](../superpowers/specs/2026-04-27-kb-final-form-design.md), §3.4 + §3.7a.
+[docs/superpowers/specs/2026-04-27-kebab-final-form-design.md](../superpowers/specs/2026-04-27-kebab-final-form-design.md), §3.4 + §3.7a.

docs/spec/chunk-policy.md

@@ -5,4 +5,4 @@
 `policy_hash` so chunk IDs include the policy.
 
 Canonical source:
-[docs/superpowers/specs/2026-04-27-kb-final-form-design.md](../superpowers/specs/2026-04-27-kb-final-form-design.md), §3.5 + §7.1 + §7.2.
+[docs/superpowers/specs/2026-04-27-kebab-final-form-design.md](../superpowers/specs/2026-04-27-kebab-final-form-design.md), §3.5 + §7.1 + §7.2.

docs/spec/citation-policy.md

@@ -4,4 +4,4 @@ Citations use W3C Media Fragments URIs to locate evidence inside a
 document. Five variants: `Line`, `Page`, `Region`, `Caption`, `Time`.
 
 Canonical source:
-[docs/superpowers/specs/2026-04-27-kb-final-form-design.md](../superpowers/specs/2026-04-27-kb-final-form-design.md), §3.5 + §0 Q3.
+[docs/superpowers/specs/2026-04-27-kebab-final-form-design.md](../superpowers/specs/2026-04-27-kebab-final-form-design.md), §3.5 + §0 Q3.

docs/spec/domain-model.md

@@ -1,6 +1,6 @@
 # Domain model
 
-The domain types live in `kb-core` and mirror the frozen design exactly.
+The domain types live in `kebab-core` and mirror the frozen design exactly.
 
 Canonical source:
-[docs/superpowers/specs/2026-04-27-kb-final-form-design.md](../superpowers/specs/2026-04-27-kb-final-form-design.md), §3.
+[docs/superpowers/specs/2026-04-27-kebab-final-form-design.md](../superpowers/specs/2026-04-27-kebab-final-form-design.md), §3.

docs/spec/ids.md

@@ -1,6 +1,6 @@
 # ID recipe
 
-All `kb-*` IDs are 32 hex chars: the first 32 of `blake3(canonical_json(tuple))`.
+All `kebab-*` IDs are 32 hex chars: the first 32 of `blake3(canonical_json(tuple))`.
 
 Canonical source:
-[docs/superpowers/specs/2026-04-27-kb-final-form-design.md](../superpowers/specs/2026-04-27-kb-final-form-design.md), §4.
+[docs/superpowers/specs/2026-04-27-kebab-final-form-design.md](../superpowers/specs/2026-04-27-kebab-final-form-design.md), §4.

docs/spec/module-boundaries.md

@@ -1,8 +1,8 @@
 # Module boundaries
 
-`kb-core` is leaf — every other crate depends on it. Parsers depend on
-`kb-parse-types` (not on `kb-normalize`); `kb-normalize` depends on
-`kb-parse-types` (not on parsers). UI crates depend only on `kb-app`.
+`kebab-core` is leaf — every other crate depends on it. Parsers depend on
+`kebab-parse-types` (not on `kebab-normalize`); `kebab-normalize` depends on
+`kebab-parse-types` (not on parsers). UI crates depend only on `kebab-app`.
 
 Canonical source:
-[docs/superpowers/specs/2026-04-27-kb-final-form-design.md](../superpowers/specs/2026-04-27-kb-final-form-design.md), §8.
+[docs/superpowers/specs/2026-04-27-kebab-final-form-design.md](../superpowers/specs/2026-04-27-kebab-final-form-design.md), §8.