feat: add tv-connect / tv-install devshell helpers

tv-connect: adb connect $TV_IP:5555
tv-install <flavor>: installs flavor release APK

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

CLAUDE.md

@@ -33,9 +33,10 @@ post-25.11). No file rewriting; `gradle.properties` stays untouched.
 - All APKs:     `gradle --no-daemon :app:assembleRelease`
   → `app/build/outputs/apk/<flavor>/release/<flavor>-release.apk`
 - Single APK:   `gradle --no-daemon :app:assembleWeatherRelease`
-- Sideload:     `adb connect <tv-ip>:5555 && adb install -r <apk>`
+- Connect ADB:  `tv-connect` (uses $TV_IP from .envrc)
+- Sideload:     `tv-install <flavor>` e.g. `tv-install weather`
   (bump `versionCode` in app/build.gradle.kts first for upgrades)
-- Fresh install: `adb uninstall cz.c3c.webviewkiosk && adb install <apk>`
+- Fresh install: `adb uninstall cz.c3c.webviewkiosk.<flavor> && tv-install <flavor>`
 
 ## Key facts
 

flake.nix

@@ -63,6 +63,11 @@
           # nixpkgs PR #449037 (merged post-25.11, present in 26.05+).
           GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${sdkRoot}/build-tools/${buildToolsVersion}/aapt2";
           FONTCONFIG_FILE = pkgs.makeFontsConf { fontDirectories = fonts; };
+
+          shellHook = ''
+            tv-connect() { adb connect "$TV_IP:5555"; }
+            tv-install() { adb install -r "app/build/outputs/apk/$1/release/$1-release.apk"; }
+          '';
         };
       }
     );