chore(cargo): trim dev/test debug info — line-tables-only + split-debuginfo

dev/test profile 의 DWARF 디버그 정보 양을 줄이고 별도 .dwo 파일로
분리해서 target/ 디스크 사용량 절감.

## 동작 영향

없음. line-tables-only 는 line 번호는 유지하고 column 번호만 뺌
(backtrace 함수+라인 다 보임). split-debuginfo 는 symbol 정보를
별도 파일에 둘 뿐 binary codegen / opt-level 동일. 즉 컴파일러가
만드는 코드는 byte-identical.

release profile 안 건드림 → CI / `cargo run --release` 는 upstream
default 와 동일.

## Cargo.toml 코멘트 rename leftover 도 같이 정리

워크스페이스 root `Cargo.toml` 의 dep 코멘트 5 곳에 `kb-eval` /
`kb-store-sqlite` / `kb-store-vector` / `kb-rag` / `kb-llm-local`
옛 이름 남아있던 거 `kebab-*` 로 갱신 (rename PR #29 sweep 이
crates/ + docs/ + tasks/ 만 대상으로 해서 빠진 부분).

## 검증

- `cargo build --workspace` clean (fresh build).
- `cargo test --workspace --no-fail-fast -j 1` clean (모든 테스트
  green; 0 FAILED).

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

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

Cargo.toml

@@ -33,7 +33,7 @@ anyhow       = "1"
 thiserror    = "2"
 serde        = { version = "1", features = ["derive"] }
 serde_json   = "1"
-# Golden-fixture loader (P5-1, kb-eval) parses YAML; pinned in the
+# Golden-fixture loader (P5-1, kebab-eval) parses YAML; pinned in the
 # workspace so future eval-adjacent crates share the same major.
 serde_yaml   = "0.9"
 time         = { version = "0.3", features = ["serde", "macros", "formatting", "parsing"] }
@@ -41,7 +41,7 @@ uuid         = { version = "1", features = ["v7", "serde"] }
 blake3       = "1"
 tracing      = "0.1"
 # `bundled` ships SQLite source so the workspace doesn't depend on a
-# system libsqlite3 (matches the kb-store-sqlite feature set).
+# system libsqlite3 (matches the kebab-store-sqlite feature set).
 rusqlite     = { version = "0.32", features = ["bundled"] }
 globset      = "0.4"
 tempfile     = "3"
@@ -52,7 +52,7 @@ proptest     = "1"
 # remains untested for this workspace).
 fastembed    = "4.9"
 # LanceDB embedded vector store (P3-3). 0.23.x pulls arrow / arrow-array /
-# arrow-schema 56.x transitively (via lance 1.0); the kb-store-vector
+# arrow-schema 56.x transitively (via lance 1.0); the kebab-store-vector
 # crate matches that major to share the same Arrow types without a
 # re-export adapter.
 lancedb      = { version = "0.23", default-features = false }
@@ -61,11 +61,25 @@ arrow-array  = "56"
 arrow-schema = "56"
 tokio        = { version = "1", features = ["rt", "macros"] }
 futures      = "0.3"
-# Strict citation-marker extraction in kb-rag (P4-3) needs a single regex
+# Strict citation-marker extraction in kebab-rag (P4-3) needs a single regex
 # pass; pulled into the workspace deps so future crates can share the
 # same major.
 regex        = "1"
-# Dev-only HTTP mock server for kb-llm-local Ollama adapter tests. Requires
+# Dev-only HTTP mock server for kebab-llm-local Ollama adapter tests. Requires
 # a tokio runtime to host its mock server (the runtime adapter crate stays
 # sync via reqwest::blocking — wiremock is dev-only there).
 wiremock     = "0.6"
+
+# Disk-footprint trim for dev / test builds. Codegen, opt-level, and
+# behavior are unchanged — only DWARF debug info is reduced (line
+# numbers kept, column numbers dropped) and split into separate
+# `.dwo` files. backtrace stays useful (function + line). release
+# profile is untouched, so CI / `--release` runs are byte-identical
+# to upstream defaults.
+[profile.dev]
+debug = "line-tables-only"
+split-debuginfo = "unpacked"
+
+[profile.test]
+debug = "line-tables-only"
+split-debuginfo = "unpacked"