Close the clawability backlog with deterministic CLI output and lane lineage

Finish the remaining roadmap work by making direct CLI JSON output deterministic across the non-interactive surface, restoring the degraded-startup MCP test as a real workspace test, and adding branch-lock plus commit-lineage primitives so downstream lane consumers can distinguish superseded worktree commits from canonical lineage.

Constraint: Keep the user-facing config namespace centered on .claw while preserving legacy fallback discovery for compatibility
Constraint: Verification needed to stay clean-room and reproducible from the checked-in workspace alone
Rejected: Leave the output-format contract implied by ad-hoc smoke runs only | too easy for direct CLI regressions to slip back into prose-only output
Rejected: Keep commit provenance as free-form detail text | downstream consumers need structured branch/worktree/supersession metadata
Confidence: medium
Scope-risk: moderate
Directive: Extend the JSON contract through the same direct CLI entrypoints instead of adding one-off serializers on parallel code paths
Tested: python .github/scripts/check_doc_source_of_truth.py
Tested: cd rust && cargo fmt --all --check
Tested: cd rust && cargo test --workspace
Tested: cd rust && cargo clippy -p commands -p tools -p rusty-claude-cli --all-targets --no-deps -- -D warnings
Not-tested: full cargo clippy --workspace --all-targets -- -D warnings still reports unrelated pre-existing runtime lint debt outside this change set

.github/workflows/rust-ci.yml

@@ -8,12 +8,28 @@ on:
       - 'omx-issue-*'
     paths:
       - .github/workflows/rust-ci.yml
+      - .github/scripts/check_doc_source_of_truth.py
+      - .github/FUNDING.yml
+      - README.md
+      - USAGE.md
+      - PARITY.md
+      - PHILOSOPHY.md
+      - ROADMAP.md
+      - docs/**
       - rust/**
   pull_request:
     branches:
       - main
     paths:
       - .github/workflows/rust-ci.yml
+      - .github/scripts/check_doc_source_of_truth.py
+      - .github/FUNDING.yml
+      - README.md
+      - USAGE.md
+      - PARITY.md
+      - PHILOSOPHY.md
+      - ROADMAP.md
+      - docs/**
       - rust/**
   workflow_dispatch:
 
@@ -29,6 +45,20 @@ env:
   CARGO_TERM_COLOR: always
 
 jobs:
+  doc-source-of-truth:
+    name: docs source-of-truth
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: .
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+      - name: Check docs and metadata for stale branding
+        run: python .github/scripts/check_doc_source_of_truth.py
+
   fmt:
     name: cargo fmt
     runs-on: ubuntu-latest