Add 5 more admin tools + inline write confirmation flow

New tools in admin-tools.ts:
- list_audit_log({limit?}) — recent audit entries (terse: actor, action,
  target, timestamp). Hits /api/v1/admin/audit-log.
- get_platform_stats() — aggregate counts (tenants by status + by plan),
  composed locally from list_tenants until arcadia exposes a real stats
  endpoint.
- list_users({limit?}) — users in the currently-selected tenant via
  /api/v1/users.
- suspend_tenant({slug}) — write tool, suspends a tenant by slug.
- activate_tenant({slug}) — write tool, restores a suspended/deactivated
  tenant.

Inline write confirmation:
- New ConfirmCard component renders below the assistant message that
  proposed a write. Shows tool(args) and Confirm/Deny buttons.
- classifyCalls() splits LLM tool calls into reads/writes. Auto-loop
  runs reads immediately; for any writes, holds them in pendingConfirm
  state instead of dispatching.
- On Confirm: runs writes with allowWrites:true, prepends prior read
  results, continueChat to produce the final answer.
- On Deny: synthesises tool-result messages telling the model the user
  declined; continueChat so it can acknowledge.
- Arcadia-knowledge primer updated to tell the model the user sees an
  inline confirm card automatically — it shouldn't ask in prose first.

Wired into both /ai and /assistant.

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

app/routes/assistant.tsx

@@ -81,9 +81,16 @@ wait_for assistant-ui-control
 
 
 import { formatAdminContextForPrompt } from "~/lib/admin-context"
-import { getOpenAITools, runLLMToolCalls } from "~/lib/admin-tools"
+import {
+  buildDenialMessages,
+  classifyCalls,
+  getOpenAITools,
+  runLLMToolCalls,
+} from "~/lib/admin-tools"
 import { ARCADIA_KNOWLEDGE } from "~/lib/arcadia-knowledge"
 import { useArcadiaClient } from "@crema/arcadia-client"
+import { ConfirmCard } from "~/components/assistant/confirm-card"
+import type { ToolCall } from "@crema/llm-ui"
 
 /**
  * Always includes domain knowledge + tools + admin context + persona.
@@ -579,9 +586,16 @@ function AssistantSurface({
   const prevStreamingRef = useRef(isStreaming)
   const MAX_TOOL_ITERATIONS = 3
 
-  // Auto tool-loop using native function calls. When the streaming assistant
-  // turn ends with toolCalls attached, run them, push tool result messages,
-  // and continue the chat so the model produces its final answer.
+  // Auto tool-loop using native function calls. Reads run automatically;
+  // writes are held in `pendingConfirm` until the operator clicks Confirm
+  // or Deny in the inline ConfirmCard.
+  const [pendingConfirm, setPendingConfirm] = useState<{
+    afterIndex: number
+    writes: ToolCall[]
+    readMessages: { role: "tool"; content: string; toolCallId: string; name: string }[]
+  } | null>(null)
+  const [confirmBusy, setConfirmBusy] = useState(false)
+
   useEffect(() => {
     const justFinished = prevStreamingRef.current && !isStreaming
     prevStreamingRef.current = isStreaming
@@ -595,7 +609,6 @@ function AssistantSurface({
     processedTurnRef.current = lastIdx
 
     const calls = last.toolCalls ?? []
-    console.debug("[admin-tools] assistant turn finished, tool_calls:", calls)
     if (calls.length === 0) {
       toolIterationsRef.current = 0
       return
@@ -607,16 +620,53 @@ function AssistantSurface({
 
     toolIterationsRef.current += 1
     void (async () => {
-      console.debug("[admin-tools] running tool calls", calls)
-      const { results, toolMessages } = await runLLMToolCalls(calls, { arcadia })
-      console.debug("[admin-tools] tool results", results)
-      void continueChat(toolMessages, {
+      const { reads, writes } = classifyCalls(calls)
+      const { toolMessages: readMsgs } =
+        reads.length > 0
+          ? await runLLMToolCalls(reads, { arcadia })
+          : { toolMessages: [] }
+      if (writes.length > 0) {
+        setPendingConfirm({ afterIndex: lastIdx, writes, readMessages: readMsgs })
+        return
+      }
+      void continueChat(readMsgs, {
         system: constructorSystemPrompt,
         tools: getOpenAITools(),
         maxTokens: responseBudget,
       })
     })()
   }, [messages, isStreaming, arcadia, continueChat, constructorSystemPrompt, responseBudget])
+
+  const onConfirmWrites = useCallback(async () => {
+    if (!pendingConfirm) return
+    setConfirmBusy(true)
+    try {
+      const { toolMessages: writeMsgs } = await runLLMToolCalls(
+        pendingConfirm.writes,
+        { arcadia },
+        { allowWrites: true },
+      )
+      void continueChat([...pendingConfirm.readMessages, ...writeMsgs], {
+        system: constructorSystemPrompt,
+        tools: getOpenAITools(),
+        maxTokens: responseBudget,
+      })
+    } finally {
+      setPendingConfirm(null)
+      setConfirmBusy(false)
+    }
+  }, [pendingConfirm, arcadia, continueChat, constructorSystemPrompt, responseBudget])
+
+  const onDenyWrites = useCallback(() => {
+    if (!pendingConfirm) return
+    const denials = buildDenialMessages(pendingConfirm.writes)
+    void continueChat([...pendingConfirm.readMessages, ...denials], {
+      system: constructorSystemPrompt,
+      tools: getOpenAITools(),
+      maxTokens: responseBudget,
+    })
+    setPendingConfirm(null)
+  }, [pendingConfirm, continueChat, constructorSystemPrompt, responseBudget])
   const [editingIndex, setEditingIndex] = useState<number | null>(null)
   const [editingDraft, setEditingDraft] = useState("")
   const [speakingIndex, setSpeakingIndex] = useState<number | null>(null)
@@ -1109,6 +1159,14 @@ function AssistantSurface({
                       </div>
                     )}
                   </div>
+                  {pendingConfirm?.afterIndex === i && (
+                    <ConfirmCard
+                      calls={pendingConfirm.writes}
+                      onConfirm={onConfirmWrites}
+                      onDeny={onDenyWrites}
+                      busy={confirmBusy}
+                    />
+                  )}
                 </div>
               )
             })}