[Phase 1] Track auto-upgrade metrics in Monorail

[alfonso-noriega]

Summary

• Adds Monorail tracking for auto-upgrade events (resolves shop/issues-develop#22365)
• Stacks on [Phase 1] Port auto-upgrade POC to main #6999 (Phase 1: auto-upgrade system)
• Tracked metrics:
  • cmd_all_auto_upgrade_triggered: whether auto-upgrade was attempted
  • cmd_all_auto_upgrade_package_manager: which package manager was used (npm, yarn, pnpm, brew, etc.)
  • cmd_all_auto_upgrade_skipped_reason: why upgrade was skipped (major_version)
  • cmd_all_auto_upgrade_success: whether the upgrade succeeded or failed

Changes

• packages/cli-kit/src/public/node/monorail.ts: Added 4 new fields to the public section of Schemas[MONORAIL_COMMAND_TOPIC]
• packages/cli-kit/src/public/node/hooks/postrun.ts: Updated autoUpgradeIfNeeded() to call addPublicMetadata at each decision point (major bump skip, trigger with package manager, success/failure)
• packages/cli-kit/src/public/node/hooks/postrun.test.ts: Added 4 new test cases covering metrics recording scenarios

Test plan

• pnpm vitest run src/public/node/hooks/postrun.test.ts — all 8 tests pass
• Verify Monorail schema changes are compatible with the pipeline

🤖 Generated with Claude Code

[alfonso-noriega]

• [Phase 1] Track auto-upgrade metrics in Monorail #7001 👈 (View in Graphite)
• main

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[github-actions]

Differences in type declarations

We detected differences in the type declarations generated by Typescript for this branch compared to the baseline ('main' branch). Please, review them to ensure they are backward-compatible. Here are some important things to keep in mind:

• Some seemingly private modules might be re-exported through public modules.
• If the branch is behind main you might see odd diffs, rebase main into this branch.

New type declarations

We found no new type declarations in this PR

Existing type declarations

packages/cli-kit/dist/private/node/analytics.d.ts

@@ -23,6 +23,7 @@ interface EnvironmentData {
     env_auth_method: string;
     env_is_wsl: boolean;
     env_build_repository: string;
+    env_auto_upgrade_enabled: boolean | null;
 }
 export declare function getEnvironmentData(config: Interfaces.Config): Promise<EnvironmentData>;
 export declare function getSensitiveEnvironmentData(config: Interfaces.Config): Promise<{

packages/cli-kit/dist/public/node/metadata.d.ts

@@ -34,7 +34,7 @@ export type SensitiveSchema<T> = T extends RuntimeMetadataManager<infer _TPublic
  * @returns A container for the metadata.
  */
 export declare function createRuntimeMetadataContainer<TPublic extends AnyJson, TSensitive extends AnyJson = Record<string, never>>(defaultPublicMetadata?: Partial<TPublic>): RuntimeMetadataManager<TPublic, TSensitive>;
-type CmdFieldsFromMonorail = PickByPrefix<MonorailEventPublic, 'cmd_all_'> & PickByPrefix<MonorailEventPublic, 'cmd_app_'> & PickByPrefix<MonorailEventPublic, 'cmd_create_app_'> & PickByPrefix<MonorailEventPublic, 'cmd_theme_'> & PickByPrefix<MonorailEventPublic, 'store_'>;
+type CmdFieldsFromMonorail = PickByPrefix<MonorailEventPublic, 'cmd_all_'> & PickByPrefix<MonorailEventPublic, 'cmd_app_'> & PickByPrefix<MonorailEventPublic, 'cmd_create_app_'> & PickByPrefix<MonorailEventPublic, 'cmd_theme_'> & PickByPrefix<MonorailEventPublic, 'store_'> & PickByPrefix<MonorailEventPublic, 'env_auto_upgrade_'>;
 declare const coreData: RuntimeMetadataManager<CmdFieldsFromMonorail, {
     commandStartOptions: {
         startTime: number;

packages/cli-kit/dist/public/node/monorail.d.ts

@@ -46,6 +46,12 @@ export interface Schemas {
             cmd_all_timing_network_ms?: Optional<number>;
             cmd_all_timing_prompts_ms?: Optional<number>;
             cmd_all_timing_active_ms?: Optional<number>;
+            env_auto_upgrade_enabled?: Optional<boolean>;
+            env_auto_upgrade_accepted?: Optional<boolean>;
+            env_auto_upgrade_triggered?: Optional<boolean>;
+            env_auto_upgrade_package_manager?: Optional<string>;
+            env_auto_upgrade_skipped_reason?: Optional<string>;
+            env_auto_upgrade_success?: Optional<boolean>;
             cmd_extensions_binary_from_source?: Optional<boolean>;
             cmd_scaffold_required_auth?: Optional<boolean>;
             cmd_scaffold_template_custom?: Optional<boolean>;

packages/cli-kit/dist/public/node/upgrade.d.ts

@@ -2,7 +2,7 @@
  * Utility function for generating an install command for the user to run
  * to install an updated version of Shopify CLI.
  *
- * @returns A string with the command to run.
+ * @returns A string with the command to run, or undefined if the package manager cannot be determined.
  */
 export declare function cliInstallCommand(): string | undefined;
 /**