Extract memind_adm admin server, add local dev tooling, and remove image-generation.

Split platform admin and ops APIs into standalone admin-server.mjs with network guards; simplify billing to RMB token pricing, refactor user auth, and add rsync deploy plus local-test scripts and docs.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/types.ts

@@ -141,8 +141,6 @@ export type BillingConfig = {
   tiersCents: number[];
   minRechargeCents: number;
   balanceCents: number;
-  inputCentsPer1k: number;
-  outputCentsPer1k: number;
 };
 
 export type JsapiPayParams = {
@@ -621,19 +619,6 @@ export type UsageRecord = {
   createdAt: number;
 };
 
-export type UsageTotals = {
-  requestCount: number;
-  inputTokens: number | null;
-  outputTokens: number | null;
-  totalTokens: number;
-  costCents: number;
-};
-
-export type UsageSummary = {
-  allTime: UsageTotals;
-  last24h: UsageTotals;
-};
-
 export type BalanceUpdate = {
   balanceCents: number;
   tokensUsed?: number;