fix(hub): include Edit in default single-agent tools

Removing the claude_code preset dropped Edit. Unrestricted roles need it for
in-place file edits; write_file also grants Edit for restricted roles.

hub/test/unit/runner.test.ts

@@ -114,7 +114,7 @@ describe("runAgent", () => {
         allowDangerouslySkipPermissions: true,
         settingSources: [],
         settings: { disableBundledSkills: true, todoFeatureEnabled: true },
-        tools: expect.arrayContaining(["Read", "Write", "Bash", "Glob", "Grep", "TodoWrite"]),
+        tools: expect.arrayContaining(["Read", "Write", "Edit", "Bash", "Glob", "Grep", "TodoWrite"]),
         allowedTools: expect.arrayContaining(["TodoWrite", "mcp__cph_hub__todo_write"]),
         disallowedTools: expect.arrayContaining(["Agent", "SendMessage", "Task", "TeamCreate", "ScheduleWakeup"]),
         sandbox: expect.objectContaining({
@@ -151,6 +151,7 @@ describe("runAgent", () => {
     expect(call?.options?.tools).toEqual([
       "Read",
       "Write",
+      "Edit",
       "Bash",
       "Glob",
       "Grep",