test: stabilize suite and add coverage heatmap (#373)

* test: stabilize suite and add coverage heatmap

* ci: run full bun test suite in pr checks

src/utils/apiPreconnect.test.ts

@@ -4,6 +4,7 @@ const originalEnv = { ...process.env }
 const originalFetch = globalThis.fetch
 
 async function importFreshModule() {
+  mock.restore()
   return import(`./apiPreconnect.ts?ts=${Date.now()}-${Math.random()}`)
 }
 
@@ -14,11 +15,15 @@ beforeEach(() => {
 afterEach(() => {
   process.env = { ...originalEnv }
   globalThis.fetch = originalFetch
+  mock.restore()
 })
 
 describe('preconnectAnthropicApi', () => {
   test('does not fetch when OpenAI mode is enabled', async () => {
     process.env.CLAUDE_CODE_USE_OPENAI = '1'
+    mock.module('./model/providers.js', () => ({
+      getAPIProvider: () => 'openai',
+    }))
     const fetchMock = mock(() => Promise.resolve(new Response(null, { status: 200 })))
     globalThis.fetch = fetchMock as typeof globalThis.fetch
 
@@ -30,6 +35,9 @@ describe('preconnectAnthropicApi', () => {
 
   test('does not fetch when Gemini mode is enabled', async () => {
     process.env.CLAUDE_CODE_USE_GEMINI = '1'
+    mock.module('./model/providers.js', () => ({
+      getAPIProvider: () => 'gemini',
+    }))
     const fetchMock = mock(() => Promise.resolve(new Response(null, { status: 200 })))
     globalThis.fetch = fetchMock as typeof globalThis.fetch
 
@@ -41,6 +49,9 @@ describe('preconnectAnthropicApi', () => {
 
   test('does not fetch when GitHub mode is enabled', async () => {
     process.env.CLAUDE_CODE_USE_GITHUB = '1'
+    mock.module('./model/providers.js', () => ({
+      getAPIProvider: () => 'github',
+    }))
     const fetchMock = mock(() => Promise.resolve(new Response(null, { status: 200 })))
     globalThis.fetch = fetchMock as typeof globalThis.fetch
 
@@ -58,6 +69,9 @@ describe('preconnectAnthropicApi', () => {
     delete process.env.CLAUDE_CODE_USE_VERTEX
     delete process.env.CLAUDE_CODE_USE_FOUNDRY
 
+    mock.module('./model/providers.js', () => ({
+      getAPIProvider: () => 'firstParty',
+    }))
     const fetchMock = mock(() => Promise.resolve(new Response(null, { status: 200 })))
     globalThis.fetch = fetchMock as typeof globalThis.fetch