Remove Cashu Access Token (CAT) system entirely (v0.52.3)

- Delete pkg/cashu/ package (BDHKE, issuer, verifier, keyset, token)
- Delete pkg/interfaces/cashu/ interface definitions
- Delete pkg/bunker/acl_adapter.go CAT authorization checker
- Delete app/handle-cashu.go HTTP handlers for mint endpoints
- Delete docs/NIP-XX-CASHU-ACCESS-TOKENS.md specification
- Remove Cashu config fields from app/config/config.go
- Remove CashuIssuer/CashuVerifier from app/server.go
- Remove CAT initialization and NRC Cashu verifier from app/main.go
- Remove token extraction from app/handle-websocket.go
- Remove CAT permission checks from app/handle-event.go
- Remove CashuEnabled from bunker info response
- Remove UseCashu field from NRC connections
- Remove AuthModeCAT from NRC protocol
- Remove CAT UI from BunkerView.svelte and RelayConnectView.svelte
- Remove cashu-client.js from web UI
- Add missing bunker worker stores to stores.js

Files modified:
- app/config/config.go: Removed Cashu config fields
- app/server.go: Removed Cashu issuer/verifier
- app/main.go: Removed Cashu initialization
- app/handle-*.go: Removed CAT checks and handlers
- app/listener.go: Removed cashuToken field
- pkg/database/nrc.go: Removed UseCashu field
- pkg/protocol/nrc/: Removed CAT auth mode and handling
- pkg/event/authorization/: Removed CAT import
- app/web/src/: Removed CAT UI components and logic
- main.go: Removed CAT help text

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

app/server.go

@@ -35,8 +35,6 @@ import (
 	"next.orly.dev/pkg/protocol/nip43"
 	"next.orly.dev/pkg/protocol/publish"
 	"next.orly.dev/pkg/bunker"
-	"next.orly.dev/pkg/cashu/issuer"
-	"next.orly.dev/pkg/cashu/verifier"
 	"next.orly.dev/pkg/protocol/nrc"
 	"next.orly.dev/pkg/ratelimit"
 	"next.orly.dev/pkg/spider"
@@ -93,10 +91,6 @@ type Server struct {
 	bunkerServer    *bunker.Server
 	subnetPool      *wireguard.SubnetPool
 
-	// Cashu access token system (NIP-XX)
-	CashuIssuer   *issuer.Issuer
-	CashuVerifier *verifier.Verifier
-
 	// NRC (Nostr Relay Connect) bridge for remote relay access
 	nrcBridge *nrc.Bridge
 
@@ -432,14 +426,6 @@ func (s *Server) UserInterface() {
 	s.mux.HandleFunc("/api/bunker/url", s.handleBunkerURL)
 	s.mux.HandleFunc("/api/bunker/info", s.handleBunkerInfo)
 
-	// Cashu access token endpoints (NIP-XX)
-	s.mux.HandleFunc("/cashu/mint", s.handleCashuMint)
-	s.mux.HandleFunc("/cashu/keysets", s.handleCashuKeysets)
-	s.mux.HandleFunc("/cashu/info", s.handleCashuInfo)
-	if s.CashuIssuer != nil {
-		log.Printf("Cashu access token API enabled at /cashu")
-	}
-
 	// NRC (Nostr Relay Connect) management endpoints
 	s.mux.HandleFunc("/api/nrc/connections", s.handleNRCConnectionsRouter)
 	s.mux.HandleFunc("/api/nrc/connections/", s.handleNRCConnectionsRouter)
@@ -1510,10 +1496,11 @@ func (s *Server) InitEventServices() {
 
 	// Initialize authorization service
 	authCfg := &authorization.Config{
-		AuthRequired: s.Config.AuthRequired,
-		AuthToWrite:  s.Config.AuthToWrite,
-		Admins:       s.Admins,
-		Owners:       s.Owners,
+		AuthRequired:    s.Config.AuthRequired,
+		AuthToWrite:     s.Config.AuthToWrite,
+		NIP46BypassAuth: s.Config.NIP46BypassAuth,
+		Admins:          s.Admins,
+		Owners:          s.Owners,
 	}
 	s.eventAuthorizer = authorization.New(
 		authCfg,