fix: close what an independent review found in the trial 2 fixes

- The pre-compact hook read only a checkpoint that started with `git commit`,
  so every plan in the new `git add … && git commit` form rebuilt nothing, and
  an empty match also skipped the session-state refresh. It now finds the
  commit anywhere in the span and always refreshes; first test for the hook.
- A sub-bullet that carries its own command stays a criterion (folding it
  left the command unrun); the shallowest bullet sets the base indent.
- Only a MINOR/SUGGESTION /code-review finding outside the range is released
  from forbidding ALLOW: a MAJOR one may be a break cited at an unchanged
  caller.
- `reuse` is an improvement category; the session-spec template stages too;
  a negated bash 3.2 constraint, an env prefix and `bash -c` are handled.
- Stale comment, Declined-to-Judge wording and rule-key counts brought in line.

Tests fail on 7c11c2a first (9 of 24).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

hooks/scripts/pre-compact-flush.mjs

@@ -63,7 +63,10 @@ function readPlanCheckpointPatterns(planPath) {
   const text = readFileSync(planPath, 'utf-8');
   const map = new Map();
   const stepRe = /^### Step (\d+):/gm;
-  const checkpointRe = /\*\*Checkpoint:\*\*\s+`git commit -m "([^"]+)"`/;
+  // The commit may follow a `git add … &&` inside the same span (plan template
+  // since lekerepo trial 2, 2026-10-08); the old pattern matched only a span
+  // that STARTED with `git commit` and so read every new plan as empty.
+  const checkpointRe = /\*\*Checkpoint:\*\*\s+`[^`]*?\bgit commit -m "([^"]+)"[^`]*`/;
   const headings = [];
   let m;
   while ((m = stepRe.exec(text)) !== null) {
@@ -150,14 +153,12 @@ for (const { projDir, progPath, planPath } of progressFiles) {
   const repoRoot = repoRootOf(projDir);
   if (!repoRoot) continue;
 
+  // No recognisable checkpoint or no start sha means nothing to derive, but the
+  // session-state refresh below still runs: it is independent of the step.
   const plan = readPlanCheckpointPatterns(planPath);
-  if (plan.size === 0) continue;
-
   const sessionStart = progress.session_start_sha;
-  if (!sessionStart) continue;
-
-  const commits = gitLog(repoRoot, sessionStart);
-  const derivedStep = deriveCurrentStep(progress, plan, commits);
+  const commits = plan.size > 0 && sessionStart ? gitLog(repoRoot, sessionStart) : [];
+  const derivedStep = commits.length > 0 ? deriveCurrentStep(progress, plan, commits) : null;
 
   if (derivedStep !== null && derivedStep > (progress.current_step || 0)) {
     progress.current_step = derivedStep;