agents: fix review findings — thread attribution, races, rescue stall, docs, CI

Fixes from a full repo review:

- fetch-thread.sh: attribute every comment to its REAL author (@pm/@qa/… —
  agents post as their own users now); the old "🤖 @name line at the top" hint
  pointed at headers we removed, leaving every teammate comment anonymous. Also
  strip the hidden loop-prevention marker from bodies (prompt noise).
- agent.yml: per-issue concurrency group (queued, no cancel) — two quick
  comments on one issue no longer race the same ai/issue-N branch.
- rescue-pr.sh: after opening a rescue PR, hand it back into the flow with an
  unmarked @pm trigger (the pm→qa choreography previously stalled silently on
  any rescued run); drop the old "🤖 **@name**" header style; add ops to the
  token case; mark the status note with the hidden marker.
- README: token table said "@qa merges / TOKEN_QA needs write:repository" —
  inverted since the PM-orchestrated flow (@pm merges, autopilot only; @qa is
  read-only). Updated the agent table (descs, node1-ssh moved to homelab) and
  added a "How a task flows" section.
- agents.json: pm/qa descs now describe the orchestrator/reviewer roles (these
  feed the roster prompt agents route by).
- NEW ci.yml: bash -n + shellcheck(-S error) on every script, YAML-parse on
  every workflow, agents.json schema check — the ${x:-{}} brace bug would have
  been caught here before it shipped.
- install-opencode.sh: pin opencode (default 1.17.13, override via
  OPENCODE_VERSION) — a breaking release no longer takes down every agent.
- build-activity-log.sh: ollama/ollama-cloud models are subscription-billed
  (no $/token exists) — label the footer "subscription" instead of a
  misleading $0.0000; metered (anthropic) models keep the real dollar cost.
- route.sh: document that mention-priority is list-order and load-bearing for
  the flow's trigger comments.

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

.gitea/workflows/scripts/rescue-pr.sh

@@ -6,7 +6,7 @@
 # the run. Comment-only roles (pm/qa) push nothing, so they are skipped.
 #
 # Required env (provided by the workflow step):
-#   GT TOKEN_PM TOKEN_SENIOR TOKEN_JUNIOR TOKEN_LEAD TOKEN_QA
+#   GT TOKEN_PM TOKEN_SENIOR TOKEN_JUNIOR TOKEN_LEAD TOKEN_QA TOKEN_OPS
 #   NAME MODE NUM TITLE BRANCH GITHUB_SERVER_URL GITHUB_REPOSITORY
 set +e
 
@@ -17,9 +17,11 @@ set +e
 # Post/PR as the agent's OWN Gitea user when its token is configured; else the built-in bot.
 case "$NAME" in
   pm) TOK="$TOKEN_PM";; senior) TOK="$TOKEN_SENIOR";; junior) TOK="$TOKEN_JUNIOR";;
-  lead) TOK="$TOKEN_LEAD";; qa) TOK="$TOKEN_QA";; *) TOK="";;
+  lead) TOK="$TOKEN_LEAD";; qa) TOK="$TOKEN_QA";; ops) TOK="$TOKEN_OPS";; *) TOK="";;
 esac
 [ -z "$TOK" ] && TOK="$GT"
+# Trigger token: the @pm hand-back below must FIRE a new run, which the built-in token cannot.
+TTOK="$TOK"; [ "$TTOK" = "$GT" ] && TTOK=""
 API="${GITHUB_SERVER_URL}/api/v1/repos/${GITHUB_REPOSITORY}"
 hdr=(-H "Authorization: token $TOK" -H "Content-Type: application/json")
 
@@ -38,18 +40,30 @@ resp=$(curl -sS "${hdr[@]}" "$API/pulls?state=open&limit=50" \
       | jq -r --arg br "$BRANCH" 'if type=="array" then (map(select(.head.ref==$br)) | .[0] // empty) else empty end' 2>/dev/null)
 url=$(printf '%s' "$resp" | jq -r '.html_url // empty' 2>/dev/null)
 if [ -z "$url" ]; then
-  body=$(printf 'The run failed before it could publish, but pushed work exists on this branch — opening a PR so it is not lost.\n\n---\nResolves #%s · 🤖 @%s (auto-rescued after a failed run)' "$NUM" "$NAME")
+  body=$(printf 'The run failed before it could publish, but pushed work exists on this branch — opening a PR so it is not lost.\n\n---\nResolves #%s (auto-rescued after a failed run)' "$NUM")
   resp=$(curl -sS -X POST "${hdr[@]}" "$API/pulls" \
     -d "$(jq -nc --arg t "@$NAME: $TITLE" --arg h "$BRANCH" --arg b "$body" \
           '{title:$t, head:$h, base:"main", body:$b}')")
   echo "rescue PR create ($BRANCH): $resp"
   url=$(printf '%s' "$resp" | jq -r '.html_url // empty' 2>/dev/null)
+  prnum=$(printf '%s' "$resp" | jq -r '.number // empty' 2>/dev/null)
+else
+  prnum=$(printf '%s' "$resp" | jq -r '.number // empty' 2>/dev/null)
 fi
 
 if [ -n "$url" ]; then
+  # Status note on the issue (marked — must not trigger)…
   curl -sS -X POST "${hdr[@]}" "$API/issues/$NUM/comments" \
-    -d "$(jq -nc --arg b "$(printf '🤖 **@%s** — ⚠️ the run failed, but your pushed work was not lost — a PR was opened for branch \`%s\`:\n- %s' "$NAME" "$BRANCH" "$url")" '{body:$b}')" \
+    -d "$(jq -nc --arg b "$(printf '⚠️ The run failed, but the pushed work was not lost — a PR was opened for branch \`%s\`:\n- %s\n\n<!-- 🤖 agent reply — do not trigger -->' "$BRANCH" "$url")" '{body:$b}')" \
     -w '\nrescue comment -> HTTP %{http_code}\n' || true
+  # …then hand the rescued PR back into the flow: without this, the pm→qa choreography would stall
+  # here (the normal "PR ready" trigger never fired). Unmarked + PAT so it starts @pm's run.
+  if [ -n "$TTOK" ]; then
+    curl -sS -X POST -H "Authorization: token $TTOK" -H "Content-Type: application/json" \
+      "$API/issues/$NUM/comments" \
+      -d "$(jq -nc --arg b "@pm — PR #${prnum:-?} was auto-rescued after a failed run (issue #$NUM). Please route it for review." '{body:$b}')" \
+      -w '\nrescue trigger @pm -> HTTP %{http_code}\n' || true
+  fi
 else
   echo "rescue: could not open/find a PR for $BRANCH"
 fi