fix(docs): the order fields stand on all five surfaces (green)

/trekbrief Phase 7 says the writer adds order_id / order_claimed_at /
order_reason (never typed by the model) and that the yardstick joins use on
order_id; the fixture row lists them in `fields`, EXPORT_DENYLIST names them,
and its stale line_ref (657-672) now reads 961-976; the allowlist header
names them as dropped; docs/architecture.md Stats explains them.

/trekbrief --approve now runs Phase 7 after a successful stamp, with fixed
values (mode "approve", 0 turns, brief_quality/research_topics/auto_research
from the brief's frontmatter, auto_result "manual", intent_approved true).
Valgt fordi PM 04.10 (point 3): fix the code, not the criterion - the
approval must leave the trekbrief record. Measured hole: okf-wiki v1-k has
brief-approved 04.10 17:12Z and trekplan 17:29Z, but only a 03.10 trekbrief
record with intent_approved false. CLAUDE.md, README.md and
docs/command-modes.md say so. The manual path is unchanged.

npm test 1309 -> 1362 (1360 pass / 0 fail / 2 skip).

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

commands/trekbrief.md

@@ -62,8 +62,9 @@ Parse `$ARGUMENTS`:
    file resolves to itself, whatever its name (a `/trekplan --brief` brief).
    On exit 1, print its `error` and stop. Otherwise set `BRIEF_PATH`,
    `PROJECT_DIR` and `PLAN_COMMAND` from `brief_path`, `project_dir` and
-   `plan_command`, jump straight to **Phase 4h**, run it, print its report,
-   and stop. This is the remedy `/trekplan` names when it halts on an
+   `plan_command`, jump straight to **Phase 4h**, run it and print its
+   report; if the stamp printed `stamped: true`, run **Phase 7** with the
+   approve-mode values it names, then stop. This is the remedy `/trekplan` names when it halts on an
    unapproved or stale intent, on both of its brief modes.
 
 In every other mode, `BRIEF_PATH = {PROJECT_DIR}/brief.md` and
@@ -89,7 +90,7 @@ Examples:
 
 Report:
 ```
-Mode: {default | quick}
+Mode: {default | quick | approve}
 Task: {task description}
 ```
 
@@ -786,7 +787,8 @@ Report:
 Intent: {approved (sha256:…12 hex) | left unapproved — /trekplan will halt}
 ```
 
-In `--approve` mode, stop after the report and print the next step:
+In `--approve` mode, run **Phase 7** (`"mode": "approve"`) when the stamp
+printed `stamped: true`, then stop and print the next step:
 `{PLAN_COMMAND}` (only if approved).
 
 ## Phase 5 — Auto-orchestration opt-in (if research_topics > 0)
@@ -961,7 +963,7 @@ node ${CLAUDE_PLUGIN_ROOT}/lib/stats/stats-append.mjs trekbrief <<'JSON'
   "ts": "{ISO-8601}",
   "task": "{task description (first 100 chars)}",
   "slug": "{slug}",
-  "mode": "{default | quick}",
+  "mode": "{default | quick | approve}",
   "interview_turns": {N},
   "review_iterations": {1..3},
   "brief_quality": "{complete | partial}",
@@ -978,6 +980,18 @@ JSON
 answered "Approve"). `slug` is the brief's `slug`, the same one the stamp's
 `brief-approved` record and `/trekplan`'s record carry.
 
+In `--approve` mode the record carries fixed values: `"mode": "approve"`,
+`"interview_turns": 0`, `"review_iterations": 0`, `brief_quality`,
+`research_topics` and `auto_research` from the brief's frontmatter (`complete`,
+`0`, `false` when absent), `"auto_result": "manual"`, `"intent_approved": true`.
+
+The writer adds three keys itself: `order_id`, `order_claimed_at` and
+`order_reason` - the coord-queue order this run is working on, read from the
+queue's claimed orders (exactly one: its id and claim time; zero or several:
+`order_id: null` and the reason). Never type them: any `order_*` key in the
+record is replaced. `scripts/yardstick.mjs` joins its `use` number on
+`order_id`.
+
 The writer prints `{"written": true, ...}`. On `"written": false` (exit 1),
 print its `reason` in one line and continue. A stats failure never blocks the
 workflow, but it is reported, not skipped silently.