fix(sdk): forward --ws workstream flag through query dispatch (#2546)

* fix(sdk): forward --ws workstream flag through query dispatch (closes #2524)

- cli.ts: pass args.ws as workstream to registry.dispatch()
- registry.ts: add workstream? param to dispatch(), thread to handler
- utils.ts: add optional workstream? to QueryHandler type signature
- helpers.ts: planningPaths() accepts workstream? and uses relPlanningPath()
- All ~26 query handlers updated to receive and pass workstream to planningPaths()
- Config/commit/intel handlers use _workstream (project-global, not scoped)
- Add failing-then-passing test: tests/bug-2524-sdk-query-ws-flag.test.cjs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(sdk): forward workstream to all downstream query helpers

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(test): rewrite #2524 test as static source assertions — no sdk/dist build in CI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

sdk/src/query/utils.ts

@@ -27,7 +27,7 @@ export interface QueryResult {
 }
 
 /** Signature for a query handler function. */
-export type QueryHandler = (args: string[], projectDir: string) => Promise<QueryResult>;
+export type QueryHandler = (args: string[], projectDir: string, workstream?: string) => Promise<QueryResult>;
 
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