refactor: rename dashboards→webviews, unique applicationId per flavor

Each flavor gets applicationIdSuffix = ".<name>" so the Bravia
getApplicationList API returns a distinct URI per webview, enabling
Control4 to launch specific flavors independently.

BREAKING CHANGE: applicationId changed from cz.c3c.webviewkiosk to
cz.c3c.webviewkiosk.<flavor> — uninstall old app before reinstalling.
BuildConfig.DASHBOARD_URL renamed to WEBVIEW_URL.

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

README.md

@@ -1,12 +1,12 @@
 # android-webview-kiosk
 
-Fullscreen WebView kiosk for Android TV. Shows configurable Grafana dashboards
-defined in `dashboards.yaml`. Target device: Sony Bravia KD-65XE9305 (Android 8.0).
+Fullscreen WebView kiosk for Android TV. Shows configurable web pages
+defined in `webviews.yaml`. Target device: Sony Bravia KD-65XE9305 (Android 8.0).
 Built for remote launch via the Bravia REST IP-control API, driven by Control4.
 
-## Dashboards
+## Webviews
 
-Defined in `dashboards.yaml` at repo root:
+Defined in `webviews.yaml` at repo root:
 
 ```yaml
 weather:
@@ -18,7 +18,8 @@ house_condition:
   label: House Condition
 ```
 
-Each entry produces a separate APK. Names must be valid Gradle identifiers
+Each entry produces a separate APK with a unique `applicationId`
+(`cz.c3c.webviewkiosk.<name>`). Names must be valid Gradle identifiers
 (letters, digits, underscores — no hyphens).
 
 ## Build
@@ -38,9 +39,9 @@ APKs: `app/build/outputs/apk/<flavor>/release/<flavor>-release.apk`
 2. `adb connect <tv-ip>:5555`
 3. `adb install -r app/build/outputs/apk/weather/release/weather-release.apk`
 
-Fresh install (removing old app first):
+Fresh install (first time or changing applicationId):
 
-    adb uninstall cz.c3c.webviewkiosk
+    adb uninstall cz.c3c.webviewkiosk.<flavor>
     adb install app/build/outputs/apk/<flavor>/release/<flavor>-release.apk
 
 Upgrades: bump `versionCode` in `app/build.gradle.kts`, rebuild, reinstall
@@ -51,15 +52,17 @@ with `-r`. Same committed keystore = no uninstall needed.
 TV prerequisite: IP control auth = "Normal and Pre-Shared Key", Remote
 start enabled (wake from deep standby).
 
-App URI (from `getApplicationList`):
-`com.sony.dtv.cz.c3c.webviewkiosk.cz.c3c.webviewkiosk.MainActivity`
+Each webview flavor has its own URI — retrieve per-flavor URIs via
+`getApplicationList`. Example for `weather` (`cz.c3c.webviewkiosk.weather`):
+
+`com.sony.dtv.cz.c3c.webviewkiosk.weather.cz.c3c.webviewkiosk.weather.MainActivity`
 
 **`setActiveApp` alone wakes the TV from standby** — no separate
 `setPowerStatus` call is needed. The Control4 driver can use a single call:
 
     curl -s -X POST http://$TV_IP/sony/appControl \
       -H "X-Auth-PSK: $PSK" -H 'Content-Type: application/json' \
-      -d '{"method":"setActiveApp","id":601,"version":"1.0","params":[{"uri":"com.sony.dtv.cz.c3c.webviewkiosk.cz.c3c.webviewkiosk.MainActivity"}]}'
+      -d '{"method":"setActiveApp","id":601,"version":"1.0","params":[{"uri":"<flavor-uri>"}]}'
 
 If the TV is already on, `setActiveApp` brings the kiosk to the foreground.
 If in standby, it wakes and launches directly.
@@ -74,6 +77,6 @@ For reference, the two-step sequence (if needed for other integrations):
     # 2. launch (~6 s from quick standby, up to ~30 s from deep eco standby)
     curl -s -X POST http://$TV_IP/sony/appControl \
       -H "X-Auth-PSK: $PSK" -H 'Content-Type: application/json' \
-      -d '{"method":"setActiveApp","id":601,"version":"1.0","params":[{"uri":"com.sony.dtv.cz.c3c.webviewkiosk.cz.c3c.webviewkiosk.MainActivity"}]}'
+      -d '{"method":"setActiveApp","id":601,"version":"1.0","params":[{"uri":"<flavor-uri>"}]}'
 
 Control4: a DriverWorks driver issuing `setActiveApp` is a separate project.