Step 1 in progress: the settings page server, probes, teaching pages and UI (not deployed yet)

- settings/server.py: read-only routes (overview, keys, computers, gear, companion, logs, history,
  help facts, key guide / cheat sheet / where things are), the editing-code check with a lockout,
  LAN-only binding with a per-minute rebind
- settings/probes.py: fixed read-only probes per computer; whole lists fetched and matched locally
- settings/keyguide.py: the generated teaching pages
- settings/ui: the page, every screen read-only
- status_panel.py: snapshot.json every 5 s for the page; the Companion database lookup prefers the
  running build's folder and skips a database that will not open (a stale v5.1 folder was breaking it)
- config.json: every computer's record (what runs there, network ports, done-by-hand ticks), the
  editing code (kept in the repo, the user's choice), an empty gear list
- install.sh: the settings page as a second LaunchAgent; settings/ and schema.py deployed

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

settings/__init__.py

@@ -0,0 +1,8 @@
+"""The settings page: a small web server on the Ingest Mac beside the watchdog."""
+import os
+import sys
+
+HERE = os.path.dirname(os.path.abspath(__file__))
+PARENT = os.path.dirname(HERE)
+if PARENT not in sys.path:                     # status_panel, schema, make_page live one folder up
+    sys.path.insert(0, PARENT)