feat: TTLock — correct DLL flow with buildNo/floorNo per lock

Backend: room-locks now store/return build_no, floor_no (required by
CE_WriteCard). issue-card passes buildNo/floorNo to agent instead of
cardSectors/username/password. testApi route simplified (no OAuth).

Frontend: remove username/password fields (not needed), add buildNo/floorNo
fields to lock mapping form, show building/floor in lock list.

Migration 056: adds build_no, floor_no columns to room_lock_mappings.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/api.ts

@@ -617,7 +617,7 @@ export const api = {
       req<{ ok: boolean }>('POST', `/api/hotels/${slug}/ttlock/test`, { workstationId }),
 
     testApi: (slug: string, workstationId: string) =>
-      req<{ ok: boolean; lockCount?: number }>('POST', `/api/hotels/${slug}/ttlock/test-api`, { workstation_id: workstationId }),
+      req<{ ok: boolean }>('POST', `/api/hotels/${slug}/ttlock/test-api`, { workstation_id: workstationId }),
 
     findApiConfig: (slug: string, workstationId: string) =>
       req<{ ok: boolean; appDir?: string; results?: { path: string; matches: string[] }[] }>('POST', `/api/hotels/${slug}/ttlock/find-api-config`, { workstation_id: workstationId }),
@@ -628,7 +628,7 @@ export const api = {
     getRoomLocks: (slug: string) =>
       req<RoomLockMapping[]>('GET', `/api/hotels/${slug}/ttlock/room-locks`),
 
-    mapRoom: (slug: string, data: { roomId?: string; lockMac: string; lockName?: string }) =>
+    mapRoom: (slug: string, data: { roomId?: string; lockMac: string; lockName?: string; buildNo?: number; floorNo?: number }) =>
       req<{ ok: boolean }>('POST', `/api/hotels/${slug}/ttlock/room-locks`, data),
 
     unmapRoom: (slug: string, roomId: string) =>
@@ -1094,21 +1094,18 @@ export interface Workstation {
 }
 
 export interface TTLockConfig {
-  isEnabled:      boolean
-  clientId:       string
-  cardSectors:    string
-  apiServer:      string
-  ttlockUsername: string
+  isEnabled:   boolean
+  clientId:    string
+  cardSectors: string
+  apiServer:   string
 }
 
 export interface TTLockConfigUpdate {
-  isEnabled?:       boolean
-  clientId?:        string
-  clientSecret?:    string
-  ttlock_username?: string
-  ttlock_password?: string
-  cardSectors?:     string
-  apiServer?:       string
+  isEnabled?:    boolean
+  clientId?:     string
+  clientSecret?: string
+  cardSectors?:  string
+  apiServer?:    string
 }
 
 export interface RoomLockMapping {
@@ -1117,6 +1114,8 @@ export interface RoomLockMapping {
   roomNumber: string
   lockMac:    string
   lockName:   string | null
+  buildNo:    number
+  floorNo:    number
 }
 
 export interface CardIssuanceResult {