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

README.md

@@ -220,7 +220,7 @@ command reference.
 
 ## Entity Types
 
-Entities are subtyped as project, system, tool, technology, or person, and each subtype has
+Entities are subtyped as codebase, system, tool, technology, or person, and each subtype has
 its own directory under `kb/entities/`. The authoritative list - and where each one is
 written - is declared by the type-spec, so ask the tool rather than a table here: