refactor(plugins): rename PlaylistGenerator to PlaylistProvider

Rename the capability from PlaylistGenerator to PlaylistProvider and the
internal orchestrator struct from playlistGeneratorOrchestrator to
playlistSyncer. The new names better describe what the capability does
(provides playlists) rather than how it works internally. All source
files, test plugin, PDK packages (Go/Rust), YAML schemas, and exported
WASM function names are updated accordingly.

plugins/testdata/test-playlist-generator/manifest.json

@@ -1,6 +0,0 @@
-{
-  "name": "Test Playlist Generator",
-  "author": "Navidrome Test",
-  "version": "1.0.0",
-  "description": "A test playlist generator plugin for integration testing"
-}

plugins/testdata/test-playlist-provider/go.mod

@@ -1,4 +1,4 @@
-module test-playlist-generator
+module test-playlist-provider
 
 go 1.25
 

plugins/testdata/test-playlist-provider/main.go

@@ -1,4 +1,4 @@
-// Test playlist generator plugin for Navidrome plugin system integration tests.
+// Test playlist provider plugin for Navidrome plugin system integration tests.
 package main
 
 import (
@@ -6,20 +6,20 @@ import (
 	"strconv"
 
 	"github.com/navidrome/navidrome/plugins/pdk/go/pdk"
-	pg "github.com/navidrome/navidrome/plugins/pdk/go/playlistgenerator"
+	pp "github.com/navidrome/navidrome/plugins/pdk/go/playlistprovider"
 )
 
 func init() {
-	pg.Register(&testPlaylistGenerator{})
+	pp.Register(&testPlaylistProvider{})
 }
 
-type testPlaylistGenerator struct{}
+type testPlaylistProvider struct{}
 
-func (t *testPlaylistGenerator) GetAvailablePlaylists(_ pg.GetAvailablePlaylistsRequest) (pg.GetAvailablePlaylistsResponse, error) {
+func (t *testPlaylistProvider) GetAvailablePlaylists(_ pp.GetAvailablePlaylistsRequest) (pp.GetAvailablePlaylistsResponse, error) {
 	// Check for configured error
 	errMsg, hasErr := pdk.GetConfig("error")
 	if hasErr && errMsg != "" {
-		return pg.GetAvailablePlaylistsResponse{}, fmt.Errorf("%s", errMsg)
+		return pp.GetAvailablePlaylistsResponse{}, fmt.Errorf("%s", errMsg)
 	}
 
 	// Get the owner username from config (defaults to "admin")
@@ -28,8 +28,8 @@ func (t *testPlaylistGenerator) GetAvailablePlaylists(_ pg.GetAvailablePlaylists
 		ownerUsername = u
 	}
 
-	resp := pg.GetAvailablePlaylistsResponse{
-		Playlists: []pg.PlaylistInfo{
+	resp := pp.GetAvailablePlaylistsResponse{
+		Playlists: []pp.PlaylistInfo{
 			{ID: "daily-mix-1", OwnerUsername: ownerUsername},
 			{ID: "daily-mix-2", OwnerUsername: ownerUsername},
 		},
@@ -46,40 +46,40 @@ func (t *testPlaylistGenerator) GetAvailablePlaylists(_ pg.GetAvailablePlaylists
 	return resp, nil
 }
 
-func (t *testPlaylistGenerator) GetPlaylist(req pg.GetPlaylistRequest) (pg.GetPlaylistResponse, error) {
+func (t *testPlaylistProvider) GetPlaylist(req pp.GetPlaylistRequest) (pp.GetPlaylistResponse, error) {
 	// Check for configured error
 	errMsg, hasErr := pdk.GetConfig("get_playlist_error")
 	if hasErr && errMsg != "" {
 		// Check if the error should be typed (e.g., NotFound)
 		errType, _ := pdk.GetConfig("get_playlist_error_type")
-		if errType == pg.PlaylistGeneratorErrorNotFound.Error() {
-			return pg.GetPlaylistResponse{}, fmt.Errorf("%w: %s", pg.PlaylistGeneratorErrorNotFound, errMsg)
+		if errType == pp.PlaylistProviderErrorNotFound.Error() {
+			return pp.GetPlaylistResponse{}, fmt.Errorf("%w: %s", pp.PlaylistProviderErrorNotFound, errMsg)
 		}
-		return pg.GetPlaylistResponse{}, fmt.Errorf("%s", errMsg)
+		return pp.GetPlaylistResponse{}, fmt.Errorf("%s", errMsg)
 	}
 
 	switch req.ID {
 	case "daily-mix-1":
-		return pg.GetPlaylistResponse{
+		return pp.GetPlaylistResponse{
 			Name:        "Daily Mix 1",
 			Description: "Your personalized daily mix",
 			CoverArtURL: "https://example.com/cover1.jpg",
-			Tracks: []pg.SongRef{
+			Tracks: []pp.SongRef{
 				{Name: "Song A", Artist: "Artist One"},
 				{Name: "Song B", Artist: "Artist Two"},
 			},
 			ValidUntil: 0, // Static, no refresh
 		}, nil
 	case "daily-mix-2":
-		return pg.GetPlaylistResponse{
+		return pp.GetPlaylistResponse{
 			Name: "Daily Mix 2",
-			Tracks: []pg.SongRef{
+			Tracks: []pp.SongRef{
 				{Name: "Song C", Artist: "Artist Three"},
 			},
 			ValidUntil: 0,
 		}, nil
 	default:
-		return pg.GetPlaylistResponse{}, fmt.Errorf("unknown playlist: %s", req.ID)
+		return pp.GetPlaylistResponse{}, fmt.Errorf("unknown playlist: %s", req.ID)
 	}
 }
 

plugins/testdata/test-playlist-provider/manifest.json

@@ -0,0 +1,6 @@
+{
+  "name": "Test Playlist Provider",
+  "author": "Navidrome Test",
+  "version": "1.0.0",
+  "description": "A test playlist provider plugin for integration testing"
+}