Initial implementation of Bluetooth toy control app

Next.js app with a browser-side buttplug/buttplug-wasm control layer
(server never touches real-time device commands), SQLite storage via
Drizzle, single-secret auth, recordings/replay with device remapping,
a usage stats dashboard, Docker deployment, and Gitea CI.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01W8WkFF5ppURBAB918593Eb

lib/buttplug/store.ts

@@ -0,0 +1,44 @@
+import { create } from "zustand";
+import type { ConnectedDeviceInfo } from "./types";
+
+export const actuatorKey = (deviceIndex: number, featureIndex: number): string =>
+  `${deviceIndex}:${featureIndex}`;
+
+interface ButtplugStoreState {
+  connected: boolean;
+  scanning: boolean;
+  devices: Record<number, ConnectedDeviceInfo>;
+  /** Last-known slider value per `${deviceIndex}:${featureIndex}`, for UI display only. */
+  actuatorValues: Record<string, number>;
+  error: string | null;
+  setConnected: (connected: boolean) => void;
+  setScanning: (scanning: boolean) => void;
+  upsertDevice: (device: ConnectedDeviceInfo) => void;
+  removeDevice: (index: number) => void;
+  setActuatorValue: (deviceIndex: number, featureIndex: number, value: number) => void;
+  setError: (message: string | null) => void;
+  reset: () => void;
+}
+
+export const useButtplugStore = create<ButtplugStoreState>((set) => ({
+  connected: false,
+  scanning: false,
+  devices: {},
+  actuatorValues: {},
+  error: null,
+  setConnected: (connected) => set({ connected }),
+  setScanning: (scanning) => set({ scanning }),
+  upsertDevice: (device) => set((s) => ({ devices: { ...s.devices, [device.index]: device } })),
+  removeDevice: (index) =>
+    set((s) => {
+      const devices = { ...s.devices };
+      delete devices[index];
+      return { devices };
+    }),
+  setActuatorValue: (deviceIndex, featureIndex, value) =>
+    set((s) => ({
+      actuatorValues: { ...s.actuatorValues, [actuatorKey(deviceIndex, featureIndex)]: value },
+    })),
+  setError: (message) => set({ error: message }),
+  reset: () => set({ connected: false, scanning: false, devices: {}, actuatorValues: {} }),
+}));