fix(start-work): reuse registered opencode agent names

src/features/claude-code-session-state/state.ts

@@ -14,6 +14,7 @@ export function getMainSessionID(): string | undefined {
 }
 
 const registeredAgentNames = new Set<string>()
+const registeredAgentAliases = new Map<string, string>()
 
 const ZERO_WIDTH_CHARACTERS_REGEX = /[\u200B\u200C\u200D\uFEFF]/g
 
@@ -28,10 +29,16 @@ function normalizeStoredAgentName(name: string): string {
 export function registerAgentName(name: string): void {
   const normalizedName = normalizeRegisteredAgentName(name)
   registeredAgentNames.add(normalizedName)
+  if (!registeredAgentAliases.has(normalizedName)) {
+    registeredAgentAliases.set(normalizedName, name)
+  }
 
   const configKey = normalizeRegisteredAgentName(getAgentConfigKey(name))
   if (configKey !== normalizedName) {
     registeredAgentNames.add(configKey)
+    if (!registeredAgentAliases.has(configKey)) {
+      registeredAgentAliases.set(configKey, name)
+    }
   }
 }
 
@@ -39,6 +46,15 @@ export function isAgentRegistered(name: string): boolean {
   return registeredAgentNames.has(normalizeRegisteredAgentName(name))
 }
 
+export function resolveRegisteredAgentName(name: string | undefined): string | undefined {
+  if (typeof name !== "string") {
+    return undefined
+  }
+
+  const normalizedName = normalizeRegisteredAgentName(name)
+  return registeredAgentAliases.get(normalizedName) ?? normalizeStoredAgentName(name)
+}
+
 /** @internal For testing only */
 export function _resetForTesting(): void {
   _mainSessionID = undefined
@@ -46,6 +62,7 @@ export function _resetForTesting(): void {
   syncSubagentSessions.clear()
   sessionAgentMap.clear()
   registeredAgentNames.clear()
+  registeredAgentAliases.clear()
 }
 
 const sessionAgentMap = new Map<string, string>()