Add local source and auto fallback to store list

[dmerand]

Summary

Add --source local and auto fallback to shopify store list on top of #7709.

Position in the stack

PR	Role
#7708	BP-only store list
#7709	local auth summary API
#7714	local source + auto fallback

Scope

• add --source auto|bp|local to shopify store list
• add local-source.ts, backed by listStoredStoreAuthSummaries()
• restore local result rendering and empty states
• make auto prefer BP and fall back to local auth when BP:
  • cannot resolve the current CLI session as a user account
  • cannot fulfill the request without interactive reauthentication
  • aborts store listing for the current session
• keep explicit --source bp strict: no local fallback
• thread noPrompt through ensureAuthenticatedBusinessPlatform() so auto can probe BP before deciding to fall back
• update command/docs artifacts for the restored command surface

Contract cleanup included in this PR

• distinguish requested source from resolved source
• distinguish BP results from local results in the store list types
• make BP retrieval outcomes explicit so fallback policy stays in list/index.ts

Why this stays separate from #7709

#7709 introduced the local read API.

This PR is the behavior layer on top:

• command flag surface
• source selection and fallback policy
• local result projection
• output and docs updates

Smoke checks

• node packages/cli/bin/dev.js store list --json
  • returns BP results with the existing partial-failure warning in this environment
• node packages/cli/bin/dev.js store list --json --source local
  • returns local auth summaries in this environment

[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/public/node/session.d.ts

@@ -119,9 +119,10 @@ export declare function ensureAuthenticatedThemes(store: string, password: strin
  * Ensure that we have a valid session to access the Business Platform API.
  *
  * @param scopes - Optional array of extra scopes to authenticate with.
+ * @param options - Optional auth behavior overrides such as .
  * @returns The access token for the Business Platform API.
  */
-export declare function ensureAuthenticatedBusinessPlatform(scopes?: BusinessPlatformScope[]): Promise<string>;
+export declare function ensureAuthenticatedBusinessPlatform(scopes?: BusinessPlatformScope[], options?: EnsureAuthenticatedAdditionalOptions): Promise<string>;
 /**
  * Logout from Shopify.
  *