refactor: merge 7 workflow-role-* packages into templates

- planner/coder/reviewer/tester/committer → workflow-template-develop/src/roles/
- preparer/submitter → workflow-template-solve-issue/src/roles/
- Moved tests, updated imports, removed role packages
- 219 tests pass, build clean

Closes #76
Refs #75, #73

小橘 🍊

packages/workflow-template-develop/__tests__/develop-template.test.ts

@@ -6,12 +6,9 @@ import {
   START,
   validateWorkflowDescriptor,
 } from "@uncaged/workflow";
-
-import type { CommitterMeta } from "@uncaged/workflow-role-committer";
-import type { PlannerMeta } from "@uncaged/workflow-role-planner";
-
 import { buildDevelopDescriptor } from "../src/descriptor.js";
 import { developModerator } from "../src/index.js";
+import type { CommitterMeta, PlannerMeta } from "../src/roles/index.js";
 import type { DevelopMeta } from "../src/roles.js";
 
 const DEFAULT_PHASES: PlannerMeta["phases"] = [