Add NRC (Nostr Relay Connect) protocol and web UI (v0.48.9)

- Implement NIP-NRC protocol for remote relay access through public relay tunnel
- Add NRC bridge service with NIP-44 encrypted message tunneling
- Add NRC client library for applications
- Add session management with subscription tracking and expiry
- Add URI parsing for nostr+relayconnect:// scheme with secret and CAT auth
- Add NRC API endpoints for connection management (create/list/delete/get-uri)
- Add RelayConnectView.svelte component for managing NRC connections in web UI
- Add NRC database storage for connection secrets and labels
- Add NRC CLI commands (generate, list, revoke)
- Add support for Cashu Access Tokens (CAT) in NRC URIs
- Add ScopeNRC constant for Cashu token scope
- Add wasm build infrastructure and stub files

Files modified:
- app/config/config.go: NRC configuration options
- app/handle-nrc.go: New API handlers for NRC connections
- app/main.go: NRC bridge startup integration
- app/server.go: Register NRC API routes
- app/web/src/App.svelte: Add Relay Connect tab
- app/web/src/RelayConnectView.svelte: New NRC management component
- app/web/src/api.js: NRC API client functions
- main.go: NRC CLI command handlers
- pkg/bunker/acl_adapter.go: Add NRC scope mapping
- pkg/cashu/token/token.go: Add ScopeNRC constant
- pkg/database/nrc.go: NRC connection storage
- pkg/protocol/nrc/: New NRC protocol implementation
- docs/NIP-NRC.md: NIP specification document

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

cmd/wasmdb/main.go

@@ -0,0 +1,62 @@
+//go:build js && wasm
+
+// Package main provides the WASM entry point for the WasmDB database.
+// It initializes the IndexedDB-backed Nostr event store and exposes
+// the database API to JavaScript via the global `wasmdb` object.
+//
+// Build with:
+//   GOOS=js GOARCH=wasm go build -o wasmdb.wasm ./cmd/wasmdb
+//
+// Usage in JavaScript:
+//   // Load wasm_exec.js first (Go WASM runtime)
+//   const go = new Go();
+//   const result = await WebAssembly.instantiateStreaming(fetch('wasmdb.wasm'), go.importObject);
+//   go.run(result.instance);
+//
+//   // Wait for ready
+//   while (!wasmdb.isReady()) {
+//     await new Promise(resolve => setTimeout(resolve, 100));
+//   }
+//
+//   // Use the API
+//   await wasmdb.saveEvent(JSON.stringify(event));
+//   const events = await wasmdb.queryEvents(JSON.stringify({kinds: [1], limit: 10}));
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"next.orly.dev/pkg/database"
+	"next.orly.dev/pkg/wasmdb"
+)
+
+func main() {
+	// Create context for the database
+	ctx, cancel := context.WithCancel(context.Background())
+
+	// Initialize the database with default config
+	cfg := &database.DatabaseConfig{
+		DataDir:  ".",
+		LogLevel: "info",
+	}
+
+	db, err := wasmdb.NewWithConfig(ctx, cancel, cfg)
+	if err != nil {
+		fmt.Printf("Failed to initialize WasmDB: %v\n", err)
+		return
+	}
+
+	// Register the JavaScript bridge
+	wasmdb.RegisterJSBridge(db, ctx, cancel)
+
+	fmt.Println("WasmDB initialized and JavaScript bridge registered")
+
+	// Wait for the database to be ready
+	<-db.Ready()
+	fmt.Println("WasmDB ready to serve requests")
+
+	// Keep the WASM module running
+	// This is necessary because Go's main() returning would terminate the WASM instance
+	select {}
+}