chore(repos): exclude upstream claw-code-oss from agent-docs management

learning_ai_claw-code-oss is an upstream Anthropic Claude Code OSS
clone, not a ByteLyst product. Its root CLAUDE.md is auto-generated
by Claude Code's own bootstrap convention (documents the Rust workspace
shape, verification commands, working agreement) and is owned by
upstream conventions, not by us.

Forcing it through our agent-docs migration would:
- Delete legitimate upstream content
- Replace it with a canonical-pointer block referencing a sibling repo
  that has no semantic relationship to claw-code-oss
- Diverge from upstream Anthropic conventions for no benefit

Surgical fix: omit it from repos.txt with an inline comment explaining
why. The repo remains workspace-resident for normal IDE use; we just
don't manage its agent docs from learning_ai_common_plat.

After this change:
- drift check: 17/17 in sync, 2 missing AGENTS.md (productivity_web,
  mac_tooling — addressed in follow-up commits)
- claw-code-oss CLAUDE.md preserved as-is

.windsurf/workflows/repos.txt

@@ -29,7 +29,12 @@ learning_ai_auth_app
 learning_ai_productivity_web
 
 # --- OSS (subdirectory repos under oss/) ---
-oss/learning_ai_claw-code-oss
+# NOTE: oss/learning_ai_claw-code-oss is intentionally OMITTED. It is an
+# upstream Anthropic Claude Code OSS clone with its own CLAUDE.md convention
+# (auto-generated by Claude Code's bootstrap, not the deprecated ByteLyst
+# per-product CLAUDE.md pattern). We do not manage its agent docs; deleting
+# CLAUDE.md or forcing the ByteLyst canonical pointer block would diverge
+# from upstream alignment for no benefit.
 oss/learning_ai_claw-cowork
 
 # -- tooling --