fix(apikey): revoke must verify a row was actually updated

claudemesh apikey revoke <id> reported success even when the input
didn't match any row in mesh.api_key. The CLI's `apikey list` shows
truncated 8-char prefixes; users naturally paste those; broker did
exact-id match against meshApiKey.id; UPDATE affected 0 rows; old
revokeApiKey returned void so the CLI couldn't tell. Discovered via
end-to-end CLI smoke test against prod (roadmap validation pass).

Three-part fix:

- broker.revokeApiKey now returns
  { status: "revoked"|"not_found"|"not_unique"; id?, matches? } and
  accepts either the full id or a unique prefix (>=6 chars). Prefix
  matching is bounded to the caller's mesh and only succeeds if
  exactly one row matches; ambiguous prefixes return not_unique so
  we never silently revoke the wrong key.

- New WSApiKeyRevokeResponseMessage carries the structured status
  back to the CLI. Old apikey_revoke_ok type removed before being
  released — never shipped to users. The error path is no longer
  used for not_found/not_unique cases; the unified response carries
  both outcomes.

- CLI's apiKeyRevoke now resolves with { ok, id } | { ok: false,
  code, message }. runApiKeyRevoke surfaces the code/message and
  exits non-zero on failure (NOT_FOUND for missing, INVALID_ARGS
  for ambiguous prefix).

Net effect: pasting `claudemesh apikey revoke vq0fwjdX` now actually
revokes the key whose id starts with vq0fwjdX (or fails loud if 0
or >1 keys match). Verified against prod via the new branch's CLI
binary before commit.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/cli/src/services/broker/ws-client.ts

@@ -169,6 +169,7 @@ export class BrokerClient {
   // ── API keys (v0.2.0) ──
   private apiKeyCreatedResolvers = new Map<string, { resolve: (r: { id: string; secret: string; label: string; prefix: string; capabilities: Array<"send" | "read" | "state_write" | "admin">; topicScopes: string[] | null; createdAt: string } | null) => void; timer: NodeJS.Timeout }>();
   private apiKeyListResolvers = new Map<string, { resolve: (keys: Array<{ id: string; label: string; prefix: string; capabilities: Array<"send" | "read" | "state_write" | "admin">; topicScopes: string[] | null; createdAt: string; lastUsedAt: string | null; revokedAt: string | null; expiresAt: string | null }>) => void; timer: NodeJS.Timeout }>();
+  private apiKeyRevokeResolvers = new Map<string, { resolve: (r: { ok: true; id: string } | { ok: false; code: string; message: string }) => void; timer: NodeJS.Timeout }>();
   /** Directories from which this peer serves files. Default: [process.cwd()]. */
   private sharedDirs: string[] = [process.cwd()];
   private _serviceCatalog: Array<{ name: string; description: string; status: string; tools: Array<{ name: string; description: string; inputSchema: object }>; deployed_by: string }> = [];
@@ -699,9 +700,22 @@ export class BrokerClient {
     });
   }
 
-  async apiKeyRevoke(id: string): Promise<void> {
-    if (!this.ws || this.ws.readyState !== this.ws.OPEN) return;
-    this.ws.send(JSON.stringify({ type: "apikey_revoke", id }));
+  async apiKeyRevoke(id: string): Promise<{ ok: true; id: string } | { ok: false; code: string; message: string }> {
+    if (!this.ws || this.ws.readyState !== this.ws.OPEN) {
+      return { ok: false, code: "not_connected", message: "broker not connected" };
+    }
+    return new Promise((resolve) => {
+      const reqId = this.makeReqId();
+      this.apiKeyRevokeResolvers.set(reqId, {
+        resolve,
+        timer: setTimeout(() => {
+          if (this.apiKeyRevokeResolvers.delete(reqId)) {
+            resolve({ ok: false, code: "timeout", message: "broker did not respond within 5s" });
+          }
+        }, 5_000),
+      });
+      this.ws!.send(JSON.stringify({ type: "apikey_revoke", id, _reqId: reqId }));
+    });
   }
 
   // --- State ---
@@ -1909,6 +1923,28 @@ export class BrokerClient {
       this.resolveFromMap(this.apiKeyListResolvers, msgReqId, (msg.keys as any[]) ?? []);
       return;
     }
+    if (msg.type === "apikey_revoke_response") {
+      const status = String(msg.status ?? "");
+      if (status === "revoked") {
+        this.resolveFromMap(this.apiKeyRevokeResolvers, msgReqId, {
+          ok: true as const,
+          id: String(msg.id ?? ""),
+        });
+      } else if (status === "not_found") {
+        this.resolveFromMap(this.apiKeyRevokeResolvers, msgReqId, {
+          ok: false as const,
+          code: "not_found",
+          message: "no api key matches that id in this mesh",
+        });
+      } else if (status === "not_unique") {
+        this.resolveFromMap(this.apiKeyRevokeResolvers, msgReqId, {
+          ok: false as const,
+          code: "not_unique",
+          message: `prefix matches ${Number(msg.matches ?? 0)} keys; use the full id`,
+        });
+      }
+      return;
+    }
     if (msg.type === "push") {
       this._statsCounters.messagesIn++;
       const nonce = String(msg.nonce ?? "");