docs(p10-2): README/HANDOFF/ARCHITECTURE/SMOKE/INDEX sync + tasks/p10/INDEX

User-visible surface sync per the docs-split rule:
- README adds Tier 2 langs (yaml / dockerfile / toml / json / xml / groovy / go-mod) to the ingest支援 list and --code-lang options.
- HANDOFF flips p10-2 phase row to ✅ (v0.14.0) and updates the next-task candidates.
- ARCHITECTURE extends crates/kebab-chunk/src/ tree with k8s_manifest_resource_v1.rs / dockerfile_file_v1.rs / manifest_file_v1.rs / tier2_shared.rs, plus a Tier 2 note on the code-parser row and flowchart node.
- SMOKE adds a Tier 2 smoke walkthrough (k8s yaml + Dockerfile + Cargo.toml ingest + --code-lang search) and a P10-2 entry in the verification checklist.
- tasks/INDEX + tasks/p10/INDEX flip p10-2 to ✅ (v0.14.0).

Workspace test gate (-j 1) + clippy --workspace pass cleanly.

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

tasks/INDEX.md

@@ -145,7 +145,7 @@ P0~P5 는 직렬. P6~P9 는 P5 이후 병렬 가능.
   - p10-1C-Go Go AST chunker — 🟡 PR 오픈 (v0.12.0, `code-go-ast-v1`)
   - p10-1C-JavaKotlin Java + Kotlin AST chunkers — 🟢 PR 오픈 (v0.13.0, `code-java-ast-v1` / `code-kotlin-ast-v1`)
   - p10-1D C + C++ AST chunkers — ⏳
-  - p10-2 Tier 2 resource-aware — ⏳
+  - p10-2 Tier 2 resource-aware — ✅ 머지 (v0.14.0, `k8s-manifest-resource-v1` / `dockerfile-file-v1` / `manifest-file-v1`)
   - p10-3 Tier 3 paragraph + line-window fallback — ⏳
 
 ## Post-merge 핫픽스