Fix adaptive medication timing and update README

- Fix double notifications: remove redundant check_medication_reminders()
  call, use adaptive path as primary with basic as fallback
- Fix nag firing immediately: require nag_interval minutes after scheduled
  dose time before first nag
- Fix missing schedules: create on-demand if midnight window was missed
- Fix wrong timezone: use user_now_for() instead of request-context
  user_now() in calculate_adjusted_times()
- Fix immutable schedules: recalculate pending schedules on wake event
  detection so adaptive timing actually adapts
- Fix take/skip not updating schedule: API endpoints now call
  mark_med_taken/skipped so nags stop after logging a dose
- Fix skipped doses still triggering reminders: check both taken and
  skipped in adaptive reminder and log queries
- Update README with tasks, AI step generation, auth refresh tokens,
  knowledge base improvements, and current architecture

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

api/routes/medications.py

@@ -13,6 +13,7 @@ from psycopg2.extras import Json
 import core.auth as auth
 import core.postgres as postgres
 import core.tz as tz
+import core.adaptive_meds as adaptive_meds
 
 
 def _get_user_uuid(token):
@@ -264,6 +265,11 @@ def register(app):
             "notes": data.get("notes"),
         }
         log = postgres.insert("med_logs", log_entry)
+        # Update adaptive schedule status so nags stop
+        try:
+            adaptive_meds.mark_med_taken(user_uuid, med_id, data.get("scheduled_time"))
+        except Exception:
+            pass  # Don't fail the take action if schedule update fails
         # Advance next_dose_date for interval meds
         if med.get("frequency") == "every_n_days" and med.get("interval_days"):
             next_date = _compute_next_dose_date(med)
@@ -290,6 +296,11 @@ def register(app):
             "notes": data.get("reason"),
         }
         log = postgres.insert("med_logs", log_entry)
+        # Update adaptive schedule status so nags stop
+        try:
+            adaptive_meds.mark_med_skipped(user_uuid, med_id, data.get("scheduled_time"))
+        except Exception:
+            pass  # Don't fail the skip action if schedule update fails
         # Advance next_dose_date for interval meds
         if med.get("frequency") == "every_n_days" and med.get("interval_days"):
             next_date = _compute_next_dose_date(med)