feat: Enhances casting player with trickplay

Implements trickplay functionality with preview images to improve the casting player's seeking experience.

Adds a progress slider with trickplay preview, allowing users to scrub through media with visual feedback. Integrates device volume control and mute functionality to the Chromecast device sheet. Also fixes minor bugs and improves UI.

components/Chromecast.tsx

@@ -3,18 +3,21 @@ import type { PlaybackProgressInfo } from "@jellyfin/sdk/lib/generated-client/mo
 import { getPlaystateApi } from "@jellyfin/sdk/lib/utils/api";
 import { router } from "expo-router";
 import { useAtomValue } from "jotai";
-import { useCallback, useEffect, useRef } from "react";
+import { useCallback, useEffect, useRef, useState } from "react";
 import { Platform } from "react-native";
 import { Pressable } from "react-native-gesture-handler";
 import GoogleCast, {
   CastButton,
   CastContext,
+  CastState,
   useCastDevice,
+  useCastState,
   useDevices,
   useMediaStatus,
   useRemoteMediaClient,
 } from "react-native-google-cast";
 import { apiAtom, userAtom } from "@/providers/JellyfinProvider";
+import { ChromecastConnectionMenu } from "./chromecast/ChromecastConnectionMenu";
 import { RoundButton } from "./RoundButton";
 
 export function Chromecast({
@@ -25,6 +28,7 @@ export function Chromecast({
 }) {
   const _client = useRemoteMediaClient();
   const _castDevice = useCastDevice();
+  const castState = useCastState();
   const devices = useDevices();
   const _sessionManager = GoogleCast.getSessionManager();
   const discoveryManager = GoogleCast.getDiscoveryManager();
@@ -32,6 +36,10 @@ export function Chromecast({
   const api = useAtomValue(apiAtom);
   const user = useAtomValue(userAtom);
 
+  // Connection menu state
+  const [showConnectionMenu, setShowConnectionMenu] = useState(false);
+  const isConnected = castState === CastState.CONNECTED;
+
   const lastReportedProgressRef = useRef(0);
   const discoveryAttempts = useRef(0);
   const maxDiscoveryAttempts = 3;
@@ -148,59 +156,92 @@ export function Chromecast({
     [Platform.OS],
   );
 
+  // Handle press - show connection menu when connected, otherwise show cast dialog
+  const handlePress = useCallback(() => {
+    if (isConnected) {
+      if (mediaStatus?.currentItemId) {
+        // Media is playing - navigate to full player
+        router.push("/casting-player");
+      } else {
+        // Connected but no media - show connection menu
+        setShowConnectionMenu(true);
+      }
+    } else {
+      // Not connected - show cast dialog
+      CastContext.showCastDialog();
+    }
+  }, [isConnected, mediaStatus?.currentItemId]);
+
+  // Handle disconnect from Chromecast
+  const handleDisconnect = useCallback(async () => {
+    try {
+      const sessionManager = GoogleCast.getSessionManager();
+      await sessionManager.endCurrentSession(true);
+    } catch (error) {
+      console.error("[Chromecast] Disconnect error:", error);
+    }
+  }, []);
+
   if (Platform.OS === "ios") {
     return (
-      <Pressable
-        className='mr-4'
-        onPress={() => {
-          if (mediaStatus?.currentItemId) {
-            router.push("/casting-player");
-          } else {
-            CastContext.showCastDialog();
-          }
-        }}
-        {...props}
-      >
-        <AndroidCastButton />
-        <Feather name='cast' size={22} color={"white"} />
-      </Pressable>
+      <>
+        <Pressable className='mr-4' onPress={handlePress} {...props}>
+          <AndroidCastButton />
+          <Feather
+            name='cast'
+            size={22}
+            color={isConnected ? "#a855f7" : "white"}
+          />
+        </Pressable>
+        <ChromecastConnectionMenu
+          visible={showConnectionMenu}
+          onClose={() => setShowConnectionMenu(false)}
+          onDisconnect={handleDisconnect}
+        />
+      </>
     );
   }
 
   if (background === "transparent")
     return (
-      <RoundButton
-        size='large'
-        className='mr-2'
-        background={false}
-        onPress={() => {
-          if (mediaStatus?.currentItemId) {
-            router.replace("/casting-player" as any);
-          } else {
-            CastContext.showCastDialog();
-          }
-        }}
-        {...props}
-      >
-        <AndroidCastButton />
-        <Feather name='cast' size={22} color={"white"} />
-      </RoundButton>
+      <>
+        <RoundButton
+          size='large'
+          className='mr-2'
+          background={false}
+          onPress={handlePress}
+          {...props}
+        >
+          <AndroidCastButton />
+          <Feather
+            name='cast'
+            size={22}
+            color={isConnected ? "#a855f7" : "white"}
+          />
+        </RoundButton>
+        <ChromecastConnectionMenu
+          visible={showConnectionMenu}
+          onClose={() => setShowConnectionMenu(false)}
+          onDisconnect={handleDisconnect}
+        />
+      </>
     );
 
   return (
-    <RoundButton
-      size='large'
-      onPress={() => {
-        if (mediaStatus?.currentItemId) {
-          router.push("/casting-player");
-        } else {
-          CastContext.showCastDialog();
-        }
-      }}
-      {...props}
-    >
-      <AndroidCastButton />
-      <Feather name='cast' size={22} color={"white"} />
-    </RoundButton>
+    <>
+      <RoundButton size='large' onPress={handlePress} {...props}>
+        <AndroidCastButton />
+        <Feather
+          name='cast'
+          size={22}
+          color={isConnected ? "#a855f7" : "white"}
+        />
+      </RoundButton>
+      <ChromecastConnectionMenu
+        visible={showConnectionMenu}
+        onClose={() => setShowConnectionMenu(false)}
+        onDisconnect={handleDisconnect}
+      />
+    </>
   );
 }