watchdog: fix limit-probe self-match + scrollback dedupe wedge; plan(lvl5): badge shows level only

Night-watch findings (monthly-spend-limit window, ~01:49-04:45):
- probe text said 'usage limit' which matches LIMIT_RE, so a submitted probe
  kept limited_now true forever -> reworded to 'quota window' with a CAUTION
  note (nudge text must never match LIMIT_RE)
- dedupe scanned all 40 captured lines, so once a probe scrolled into the
  conversation no further probe ever fired (builder/adv frozen at nudges=1,
  orchestrator probes degraded to hourly riding the wake scroll) -> dedupe
  now only checks the bottom 8 lines (input area)
Core invariant HELD: zero kill+reboots during the limit window.

plan(lvl5): operator addition - the top-corner level badge (card, dashboard
pill, badge SVG) shows only the level number+color, zero capping info; the
inline per-rung table keeps intentional-skip/unverified detail.

cc-ci-plan/launch.py

@@ -376,11 +376,14 @@ def _next_limit_until(pane, now):
     return now + LIMIT_PROBE_FALLBACK, False
 
 def _limit_nudge_msg(role):
+    # CAUTION: this text lands in the pane that limit_tick later greps. It must NEVER
+    # match LIMIT_RE (found 2026-06-11: "usage limit has reset" matched, making the
+    # window self-sustaining once the probe scrolled into the conversation).
     if role == "orchestrator":
-        return ("watchdog limit-probe: if the usage limit has reset, RESUME now — "
+        return ("watchdog probe: if the quota window has reset, RESUME now — "
                 "you are the cc-ci orchestrator; re-check loop status and continue "
                 "supervising from where you stopped.")
-    return ("watchdog limit-probe: if the usage limit has reset, RESUME your loop now — "
+    return ("watchdog probe: if the quota window has reset, RESUME your loop now — "
             "pull latest, re-read your phase STATUS/REVIEW files, and continue from "
             "where you stopped; re-arm your loop pacing.")
 
@@ -415,10 +418,12 @@ def limit_tick(role, session, pane):
     if now < state.get("until", 0):
         return True  # quietly inside the window
 
-    # Window elapsed, banner still showing → probe. Dedupe: never stack a second
-    # probe while our own text is still visible (typed-but-unsubmitted, or echoed).
+    # Window elapsed, banner still showing → probe. Dedupe: never stack a second probe
+    # while our own text sits typed-but-unsubmitted in the INPUT area (bottom lines only —
+    # checking the whole pane wedged the machine once a submitted probe scrolled into the
+    # conversation above, suppressing all further probes; found 2026-06-11).
     msg = _limit_nudge_msg(role)
-    if msg[:28] in pane:
+    if msg[:28] in "\n".join(pane.splitlines()[-8:]):
         return True
     nudges = state.get("nudges", 0) + 1
     log(f"limit probe #{nudges} on {role} ({session}) — nudging to resume")