docs(harness+conductor): cover 5 missing styleguides in harvest; cosmetic cleanups

directive_hotswap_harness_20260627/spec.md: added the 5 missing
conductor/code_styleguides/*.md files to the harvest source list
(config_state_owner, workspace_paths, test_sandbox, chroma_cache,
code_path_audit) — the original list named 9 of 14. Added note that
the harvester should verify each contains a harvestable directive
before creating v1.md. Also verified tier2-autonomous.md path
exists (17,940 bytes) for plan Step 2.7.

tech-stack.md: removed duplicate src/paths.py entry (the full
description at line 37 already covers it; the line-73 stub was
redundant).

edit_workflow.md: Key Files section now points to src/project_files.py
for FileItem (moved out of src/models.py per the module taxonomy
refactor) and notes the line ~2748 ref may drift.

conductor/tech-stack.md

@@ -70,7 +70,6 @@
 
 - **src/workspace_manager.py:** Implements the `WorkspaceManager` and `WorkspaceProfile` data models for saving, loading, and merging ImGui docking layouts and window states across global and project-specific configurations.
 
-- **src/paths.py:** Centralized module for path resolution.
 - **tree-sitter / AST Parsing:** For deterministic AST parsing and automated generation of curated "Skeleton Views" and "Targeted Views" (extracting specific functions and their dependencies). Supports Python, C, and C++. Features an integrated AST cache with mtime-based invalidation to minimize re-parsing overhead. Supplemented by `SummaryCache` which provides persistent, hash-based (SHA256) caching with LRU eviction for AI-generated file summaries.
 - **pydantic / dataclasses:** For defining strict state schemas (Tracks, Tickets) used in linear orchestration.
 - **tomli-w:** For writing TOML configuration files.