test: make unsafe test coercion explicit

Move test coercion out of a hidden global and require each test to import the helper so review tools and runtime scripts can see the unsafe boundary.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/tools/call-omo-agent/session-creator.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, test } from "bun:test"
 
 import { createOrGetSession } from "./session-creator"
 import { _resetForTesting, subagentSessions } from "../../features/claude-code-session-state"
+import { unsafeTestValue } from "../../../test-support/unsafe-test-value"
 
 describe("call-omo-agent createOrGetSession", () => {
   test("creates child session without overriding permission and tracks it as subagent session", async () => {
@@ -37,12 +38,12 @@ describe("call-omo-agent createOrGetSession", () => {
     }
 
     // when
-    const result = await createOrGetSession(testCoerce(args), testCoerce(toolContext), testCoerce(ctx))
+    const result = await createOrGetSession(unsafeTestValue(args), unsafeTestValue(toolContext), unsafeTestValue(ctx))
 
     // then
     expect(result).toEqual({ sessionID: "ses_child", isNew: true })
     expect(createCalls).toHaveLength(1)
-    const createBody = (testCoerce(createCalls[0]))?.body
+    const createBody = (unsafeTestValue(createCalls[0]))?.body
     expect(createBody?.parentID).toBe("ses_parent")
     expect(createBody?.permission).toBeUndefined()
     expect(subagentSessions.has("ses_child")).toBe(true)

src/tools/call-omo-agent/subagent-session-creator.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, test } from "bun:test"
 
 import { resolveOrCreateSessionId } from "./subagent-session-creator"
 import { _resetForTesting, subagentSessions } from "../../features/claude-code-session-state"
+import { unsafeTestValue } from "../../../test-support/unsafe-test-value"
 
 describe("call-omo-agent resolveOrCreateSessionId", () => {
   const originalPlatform = process.platform
@@ -19,7 +20,7 @@ describe("call-omo-agent resolveOrCreateSessionId", () => {
     const { parentDirectory, contextDirectory } = options
     const parentSessionData = parentDirectory ? { data: { directory: parentDirectory } } : { data: {} }
 
-    const ctx = testCoerce<Parameters<typeof resolveOrCreateSessionId>[0]>({
+    const ctx = unsafeTestValue<Parameters<typeof resolveOrCreateSessionId>[0]>({
       directory: contextDirectory,
       client: {
         session: {

src/tools/call-omo-agent/sync-executor.test.ts

@@ -1,3 +1,4 @@
+import { unsafeTestValue } from "../../../test-support/unsafe-test-value"
 const { describe, test, expect, mock } = require("bun:test")
 
 type ExecuteSync = typeof import("./sync-executor").executeSync
@@ -389,7 +390,7 @@ describe("executeSync", () => {
     }
 
     //#when
-    await executeSync(args, toolContext, testCoerce(ctx), deps, undefined, spawnReservation)
+    await executeSync(args, toolContext, unsafeTestValue(ctx), deps, undefined, spawnReservation)
 
     //#then
     expect(spawnReservation.commit).toHaveBeenCalledTimes(1)