AUTO-FIX pauses through the hours (also when pressed outside them); MIDI links without a state judged by the Mac

- AUTO-FIX: tap = pause / resume; a pause lasts through the current or the next auto-fix hours; key says ON TIL,
  OFF / ON <start>, PAUSED TIL; forcing auto-fix on outside the hours is gone
- MIDI: macOS 26 reports every live link's state, so no state there = NO ANSWER; on macOS 14/15 a link put back after
  a drop counts only after 20 s (macOS drops an unanswered one at ~12 s): no more OK/LOST flicker
- WS and SC PROP ignore the rc4 module's harmless warnings, as NA

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

settings/campuses.py

@@ -225,7 +225,7 @@ def all_autofix_key(local_cfg):
 
 
 def autofix_paused(state_json):
-    """True when that location's AUTO-FIX key says it was paused by hand ("AUTO-FIX\\nOFF\\nTIL ..."), None without one."""
+    """True when that location's AUTO-FIX key says it is paused ("AUTO-FIX\\nPAUSED\\nTIL ..."), None without one."""
     try:
         af = json.loads(state_json or "{}").get("autofix")
     except ValueError:
@@ -233,7 +233,7 @@ def autofix_paused(state_json):
     if not af:
         return None
     lines = str(af.get("x") or "").split("\n")
-    return len(lines) > 2 and lines[1] == "OFF" and lines[2].startswith("TIL")
+    return len(lines) > 1 and lines[1] == "PAUSED"
 
 
 def all_autofix_summary(states, now):