Update shared Gaia workflows and Sargo development tooling

Fix camera switching and Contacts/SMS activity routing across shared hosts.
Integrate Marketplace installation and native standalone recovery tools,
Bluetooth runtime packages and trusted certificates.

Update English/French READMEs and the shared changelog with tested scope
and remaining radio/audio/Bluetooth limitations. Preview17 remains the
existing APK; no new native image is released.

Validation: shared JavaScript and native Python tests; Android packaging
and payload parity from an isolated publication checkout.

tools/refresh-settings-panels.py

@@ -3,15 +3,23 @@
 from pathlib import Path
 import re
 ROOT=Path(__file__).resolve().parents[1]
-for panel, module in [('display','slider_handler'),('wifi','wifi_network_list')]:
-    name=f'panels/{panel}/{module}'
-    relative=f'js/panels/{panel}/panel.js'
+modules = [
+    ('panels/display/slider_handler', 'js/panels/display/panel.js'),
+    ('panels/wifi/wifi_network_list', 'js/panels/wifi/panel.js'),
+    ('modules/page_transitions', 'js/main.js'),
+]
+for name, relative in modules:
     original=ROOT/'assets/webapps/settings.gaiamobile.org'/relative
     source=ROOT/'overrides/settings.gaiamobile.org'/f'js/{name}.js'
+    if not source.exists():
+        source=ROOT/'gaia/apps/settings'/f'js/{name}.js'
     text=source.read_text()
     dependencies=list(dict.fromkeys(re.findall(r"require\(['\"]([^'\"]+)['\"]\)",text)))
     import json
-    text=text.replace('define(function(require)', 'define('+repr(name)+','+json.dumps(['require',*dependencies])+',function(require)',1)
+    if 'define(function(require)' in text:
+        text=text.replace('define(function(require)', 'define('+repr(name)+','+json.dumps(['require',*dependencies])+',function(require)',1)
+    else:
+        text=text.replace('define(function()', 'define('+repr(name)+',[],function()',1)
     bundle=original.read_text()
     start=bundle.index("define('"+name+"'")
     end=bundle.find("define('",start+8)