fix(plugin): persist ultrawork variant on same-model override and normalize Claude model IDs

🤖 Generated with [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-openagent)

src/features/claude-code-agent-loader/claude-model-mapper.test.ts

@@ -75,6 +75,10 @@ describe("mapClaudeModelToOpenCode", () => {
       expect(mapClaudeModelToOpenCode("anthropic/claude-sonnet-4-6")).toEqual({ providerID: "anthropic", modelID: "claude-sonnet-4-6" })
     })
 
+    it("#when called with anthropic/claude-3.5-sonnet #then normalizes dots before splitting into object format", () => {
+      expect(mapClaudeModelToOpenCode("anthropic/claude-3.5-sonnet")).toEqual({ providerID: "anthropic", modelID: "claude-3-5-sonnet" })
+    })
+
     it("#when called with openai/gpt-5.2 #then splits into object format", () => {
       expect(mapClaudeModelToOpenCode("openai/gpt-5.2")).toEqual({ providerID: "openai", modelID: "gpt-5.2" })
     })

src/features/claude-code-agent-loader/claude-model-mapper.ts

@@ -20,7 +20,16 @@ function mapClaudeModelString(model: string | undefined): string | undefined {
   const aliasResult = CLAUDE_CODE_ALIAS_MAP.get(trimmed.toLowerCase())
   if (aliasResult) return aliasResult
 
-  if (trimmed.includes("/")) return trimmed
+  if (trimmed.includes("/")) {
+    const [providerID, ...modelParts] = trimmed.split("/")
+    const modelID = modelParts.join("/")
+
+    if (providerID.length === 0 || modelID.length === 0) return trimmed
+
+    return modelID.startsWith("claude-")
+      ? `${providerID}/${normalizeModelID(modelID)}`
+      : trimmed
+  }
 
   const normalized = normalizeModelID(trimmed)
 

src/plugin/ultrawork-model-override.ts

@@ -110,12 +110,16 @@ function applyResolvedUltraworkOverride(args: {
   if (!override.providerID || !override.modelID) return
 
   const targetModel = { providerID: override.providerID, modelID: override.modelID }
+  const messageId = output.message["id"] as string | undefined
   if (isSameModel(output.message.model, targetModel)) {
+    if (validatedVariant && messageId) {
+      scheduleDeferredModelOverride(messageId, targetModel, validatedVariant)
+      log(`[ultrawork-model-override] Persist validated variant for active model: ${override.modelID}`)
+      return
+    }
     log(`[ultrawork-model-override] Skip override; target model already active: ${override.modelID}`)
     return
   }
-
-  const messageId = output.message["id"] as string | undefined
   if (!messageId) {
     log("[ultrawork-model-override] No message ID found, falling back to direct mutation")
     output.message.model = targetModel