Add native self-hosted instance connection to fluxer_desktop

Trimmed monorepo checkout (fluxer_desktop + packages/voice_engine_v2 +
tools/ci) with a "Connect to a Different Server" menu item and popout
that lets the desktop app switch to any self-hosted Fluxer instance,
plus fixes for well-known discovery on single-domain self-hosted
deployments and a false-positive ERR_ABORTED on same-origin client
redirects during the switch. Defaults to chat.fluxr.chat and uses an
isolated userData directory from the official build.

fluxer_desktop/tsconfig.json

@@ -0,0 +1,23 @@
+{
+	"compilerOptions": {
+		"target": "ES2022",
+		"module": "ESNext",
+		"moduleResolution": "bundler",
+		"lib": ["ES2022", "DOM"],
+		"strict": true,
+		"esModuleInterop": true,
+		"skipLibCheck": true,
+		"noEmit": true,
+		"resolveJsonModule": true,
+		"isolatedModules": true,
+		"noPropertyAccessFromIndexSignature": false,
+		"jsx": "react-jsx",
+		"paths": {
+			"@electron/*": ["./src/*"],
+			"@fluxer/voice_engine_v2": ["../packages/voice_engine_v2/src/index.ts"],
+			"@fluxer/voice_engine_v2/*": ["../packages/voice_engine_v2/src/*"]
+		}
+	},
+	"include": ["src/**/*", "../packages/voice_engine_v2/src/**/*"],
+	"exclude": ["node_modules", "dist"]
+}