feat(opencode-go): add CLI install flag and TUI prompts

src/cli/cli-program.ts

@@ -31,6 +31,7 @@ program
   .option("--opencode-zen <value>", "OpenCode Zen access: no, yes (default: no)")
   .option("--zai-coding-plan <value>", "Z.ai Coding Plan subscription: no, yes (default: no)")
   .option("--kimi-for-coding <value>", "Kimi For Coding subscription: no, yes (default: no)")
+  .option("--opencode-go <value>", "OpenCode Go subscription: no, yes (default: no)")
   .option("--skip-auth", "Skip authentication setup hints")
   .addHelpText("after", `
 Examples:
@@ -57,6 +58,7 @@ Model Providers (Priority: Native > Copilot > OpenCode Zen > Z.ai > Kimi):
       opencodeZen: options.opencodeZen,
       zaiCodingPlan: options.zaiCodingPlan,
       kimiForCoding: options.kimiForCoding,
+      opencodeGo: options.opencodeGo,
       skipAuth: options.skipAuth ?? false,
     }
     const exitCode = await install(args)

src/cli/install-validators.ts

@@ -159,7 +159,8 @@ export function argsToConfig(args: InstallArgs): InstallConfig {
     hasCopilot: args.copilot === "yes",
     hasOpencodeZen: args.opencodeZen === "yes",
     hasZaiCodingPlan: args.zaiCodingPlan === "yes",
-    hasKimiForCoding: args.kimiForCoding === "yes",
+hasKimiForCoding: args.kimiForCoding === "yes",
+    hasOpencodeGo: args.opencodeGo === "yes",
   }
 }
 
@@ -170,7 +171,8 @@ export function detectedToInitialValues(detected: DetectedConfig): {
   copilot: BooleanArg
   opencodeZen: BooleanArg
   zaiCodingPlan: BooleanArg
-  kimiForCoding: BooleanArg
+kimiForCoding: BooleanArg
+  opencodeGo: BooleanArg
 } {
   let claude: ClaudeSubscription = "no"
   if (detected.hasClaude) {
@@ -184,6 +186,7 @@ export function detectedToInitialValues(detected: DetectedConfig): {
     copilot: detected.hasCopilot ? "yes" : "no",
     opencodeZen: detected.hasOpencodeZen ? "yes" : "no",
     zaiCodingPlan: detected.hasZaiCodingPlan ? "yes" : "no",
-    kimiForCoding: detected.hasKimiForCoding ? "yes" : "no",
+kimiForCoding: detected.hasKimiForCoding ? "yes" : "no",
+    opencodeGo: detected.hasOpencodeGo ? "yes" : "no",
   }
 }

src/cli/tui-install-prompts.ts

@@ -97,9 +97,19 @@ export async function promptInstallConfig(detected: DetectedConfig): Promise<Ins
       { value: "yes", label: "Yes", hint: "Kimi K2.5 for Sisyphus/Prometheus fallback" },
     ],
     initialValue: initial.kimiForCoding,
-  })
+})
   if (!kimiForCoding) return null
 
+  const opencodeGo = await selectOrCancel({
+    message: "Do you have an OpenCode Go subscription?",
+    options: [
+      { value: "no", label: "No", hint: "Will use other configured providers" },
+      { value: "yes", label: "Yes", hint: "OpenCode Go for quick tasks" },
+    ],
+    initialValue: initial.opencodeGo,
+  })
+  if (!opencodeGo) return null
+
   return {
     hasClaude: claude !== "no",
     isMax20: claude === "max20",
@@ -109,5 +119,6 @@ export async function promptInstallConfig(detected: DetectedConfig): Promise<Ins
     hasOpencodeZen: opencodeZen === "yes",
     hasZaiCodingPlan: zaiCodingPlan === "yes",
     hasKimiForCoding: kimiForCoding === "yes",
+    hasOpencodeGo: opencodeGo === "yes",
   }
 }