build: entity_type project -> codebase rename (#122)

Files changed:
- CHANGES.md
- README.md
- VERSION
- instructions/kb-profiles.md
- instructions/wiki-ingest/SKILL.md
- kb/concepts/architectures/LLM Wiki Pattern.md
- kb/concepts/architectures/Three-Layer Architecture.md
- kb/entities/COLLECTION.md
- kb/entities/INDEX.md
- kb/entities/codebases/BCDModule.md
- kb/entities/codebases/Chemenu.md
- kb/entities/codebases/andybalholm-edl.md
- kb/entities/codebases/goresponsiveness.md
- kb/entities/codebases/ha-core.md
- kb/entities/codebases/hacs-e3dc.md
- kb/entities/codebases/hacs-integration-blueprint.md
- kb/entities/codebases/llm-wiki-skills.md
- kb/entities/codebases/plugnburn-edl.md
- kb/entities/codebases/wiki-skills-vanillaflava.md
- kb/entities/codebases/wiki-skills.md
- kb/entities/projects/BCDModule.md
- kb/entities/projects/Chemenu.md
- kb/entities/projects/andybalholm-edl.md
- kb/entities/projects/goresponsiveness.md
- kb/entities/projects/ha-core.md
- kb/entities/projects/hacs-e3dc.md
- kb/entities/projects/hacs-integration-blueprint.md
- kb/entities/projects/llm-wiki-skills.md
- kb/entities/projects/plugnburn-edl.md
- kb/entities/projects/wiki-skills-vanillaflava.md
- kb/entities/projects/wiki-skills.md
- kb/index.md
- tools/chemenu/tests/test_type_resolver.py
- tools/chemenu/tests/test_types_cmd.py
- types/entity.guidance.md
- types/entity.md
- types/entity.schema.yaml

kb/entities/COLLECTION.md

@@ -28,7 +28,7 @@ tone, relationship labels, the confidence rubric. Neither is restated here.
 
 | Area | Holds |
 |------|-------|
-| `projects/` | Codebases and initiatives, named after their repository or common name |
+| `codebases/` | Codebases, named after their repository or common name |
 | `systems/` | Deployed and running systems, given a descriptive name |
 | `tools/` | CLI and desktop tools, named as the tool names itself |
 | `technologies/` | Protocols, languages, formats, in their standard spelling and capitalization |
@@ -38,8 +38,8 @@ These are areas, not collections: they inherit this contract and carry no `COLLE
 
 ## Per-area emphasis
 
-- **Projects** - purpose, status, language/stack, owner, repository, dependencies on other
-  projects and systems, architectural decisions.
+- **Codebases** - purpose, status, language/stack, owner, repository, dependencies on other
+  codebases and systems, architectural decisions.
 - **Systems** - purpose, components, dependencies, configuration locations, deployment,
   operational status, monitoring.
 - **Technologies** - purpose, use cases, trade-offs, version compatibility, which projects and