fix(test): align section-loading E2E testNames with their TOUCHFILES keys

Pre-existing on main (v1.56.x): the two section-loading E2E tests used
human-label testNames ('/ship section-loading') that don't match their slug
keys ('ship-section-loading') in E2E_TOUCHFILES/E2E_TIERS. Every other E2E test
uses the slug as its testName, and the TOUCHFILES completeness gate requires
testName to be a registered key — so the gate was red. Align both testNames to
their slug keys (also fixes tier lookup for these two periodic tests).

Verified failing on a clean origin/main checkout before the fix.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

test/skill-e2e-plan-ceo-review-section-loading.test.ts

@@ -74,7 +74,7 @@ describeE2E('/plan-ceo-review section-loading E2E (periodic, SDK capture)', () =
           'Review the plan in PLAN.md. Hold the current scope (HOLD SCOPE mode) — do not challenge or expand scope. Run the full CEO review and produce the review report.',
         requiredSections: REQUIRED_SECTIONS,
         reportMarker: /GSTACK REVIEW REPORT|COMPLETION SUMMARY|review/i,
-        testName: '/plan-ceo-review section-loading',
+        testName: 'plan-ceo-section-loading',
         runId,
       });
 

test/skill-e2e-ship-section-loading.test.ts

@@ -65,7 +65,7 @@ describeE2E('/ship section-loading E2E (periodic, SDK capture)', () => {
           'This is a FRESH version-changing ship: the branch has a real code change (app.js gained a new function with a test), VERSION still equals the base version (0.0.1, so it needs a bump), and CHANGELOG.md needs a new entry. Follow the skill\'s flow for a version-changing ship: run the pre-landing review and prepare the CHANGELOG entry. Produce the ship plan / review report. Do NOT actually commit, push, or open a PR.',
         requiredSections: REQUIRED_SECTIONS,
         reportMarker: /version|changelog|review|ship/i,
-        testName: '/ship section-loading',
+        testName: 'ship-section-loading',
         runId,
       });