fix(server): parse CLI versions with a "v" prefix

apps/server/src/provider/providerSnapshot.test.ts

@@ -11,6 +11,7 @@ import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process";
 
 import {
   isCommandMissingCause,
+  parseGenericCliVersion,
   providerModelsFromSettings,
   spawnAndCollect,
 } from "./providerSnapshot.ts";
@@ -93,6 +94,29 @@ describe("providerModelsFromSettings", () => {
   });
 });
 
+describe("parseGenericCliVersion", () => {
+  it("parses a bare version", () => {
+    expect(parseGenericCliVersion("1.14.19")).toBe("1.14.19");
+  });
+
+  it("parses a v-prefixed version", () => {
+    expect(parseGenericCliVersion("opencode v2.0.3")).toBe("2.0.3");
+    expect(parseGenericCliVersion("v22.19.0")).toBe("22.19.0");
+  });
+
+  it("parses a version embedded in other output", () => {
+    expect(parseGenericCliVersion("codex-cli 0.53.0 (build abc)")).toBe("0.53.0");
+  });
+
+  it("returns null when no version is present", () => {
+    expect(parseGenericCliVersion("no version here")).toBeNull();
+  });
+
+  it("ignores versions glued to other word characters", () => {
+    expect(parseGenericCliVersion("build2.0.3artifact")).toBeNull();
+  });
+});
+
 describe("ProviderCommandNotFoundError", () => {
   it("classifies normalized platform failures without parsing messages", () => {
     expect(

apps/server/src/provider/providerSnapshot.ts

@@ -107,8 +107,14 @@ export const spawnAndCollect = (binaryPath: string, command: ChildProcess.Comman
     return result;
   }).pipe(Effect.scoped);
 
+/**
+ * Return the first semantic version found in CLI output, or null. Accepts a
+ * leading "v" (for example `opencode v2.0.3`).
+ */
 export function parseGenericCliVersion(output: string): string | null {
-  const match = output.match(/\b(\d+\.\d+\.\d+)\b/);
+  // "opencode v2.0.3"-style output: the optional "v" has to be consumed first,
+  // since "v2" itself contains no word boundary.
+  const match = output.match(/\bv?(\d+\.\d+\.\d+)\b/);
   return match?.[1] ?? null;
 }