fix(go): preserve SDK version in dynamic snippets instead of using generator version (#14937)

* fix(go): preserve SDK version in dynamic snippets instead of using generator version

Co-Authored-By: David Konigsberg <davidakonigsberg@gmail.com>

* use util

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: patrick thornton <patrickthornton@g.harvard.edu>

Author: 3 people

generators/go-v2/dynamic-snippets/src/context/DynamicSnippetsGeneratorContext.ts

@@ -1,6 +1,7 @@
 import {
     AbstractDynamicSnippetsGeneratorContext,
-    type FernGeneratorExec
+    type FernGeneratorExec,
+    getSdkVersion
 } from "@fern-api/browser-compatible-base-generator";
 import { assertNever } from "@fern-api/core-utils";
 import type { FernIr } from "@fern-api/dynamic-ir-sdk";
@@ -214,14 +215,16 @@ export class DynamicSnippetsGeneratorContext extends AbstractDynamicSnippetsGene
         if (publishInfo.type !== "go") {
             return config;
         }
+        // Prefer --version flag over IR's publish version (which may be the generator version, not SDK version).
+        const originalVersion = getSdkVersion(config);
         return {
             ...config,
             customConfig: generatorConfig.customConfig ?? config.customConfig,
             output: {
                 ...config.output,
                 mode: {
                     type: "github",
-                    version: publishInfo.version,
+                    version: originalVersion ?? publishInfo.version,
                     repoUrl: publishInfo.repoUrl
                 } as FernGeneratorExec.OutputMode
             }

generators/go/sdk/changes/unreleased/fix-dynamic-snippets-version-suffix.yml

@@ -0,0 +1,5 @@
+- summary: |
+    Fix dynamic snippets using the generator version instead of the SDK version
+    for resolving Go import paths, which caused incorrect major version suffixes
+    in wire test imports and broke go mod tidy.
+  type: fix