fix: the trial's mechanical faults -- approval label, import path, stats, annotate path, red kind

voyage-lekerepo end-to-end trial (2026-10-06), report points 8, 10, 12, 15, 16:

- approval-log: «Approve (Recommended)» / «Godkjenn (anbefalt)» is the
  approval it labels; the suffix never turns a hollow answer into a yes.
- trekexecute Phase 8: the state-file block imports atomic-write through
  ${CLAUDE_PLUGIN_ROOT}; a relative import only ran with cwd = plugin root
  (the test runs the block from another directory).
- trekreview, trekresearch, trekcontinue: stats go through stats-append like
  the other commands, and a failed write is reported, never skipped
  silently (closes the open STATE finding for all three). The schema
  fixture's stale line refs for these and trekplan are re-measured.
- annotate prints an absolute path, so file://{$ANNOT_HTML} is a live link.
- red-proof: `red_kind` = load-error | test-failure on a proven red.

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

commands/trekexecute.md

@@ -2164,7 +2164,7 @@ ESM inline block so state-file + prompt-file writes succeed or fail together:
 node --input-type=module -e "
 import path from 'node:path';
 import { writeFileSync } from 'node:fs';
-import { atomicWriteJson } from './lib/util/atomic-write.mjs';
+import { atomicWriteJson } from '${CLAUDE_PLUGIN_ROOT}/lib/util/atomic-write.mjs';
 const [, dir, briefPath, label, status] = process.argv;
 const now = new Date().toISOString();
 const stateObj = { schema_version: 1, project: dir, next_session_brief_path: briefPath, next_session_label: label, status, updated_at: now };