feat: Complete fleet — 94 skills across 10+ domains

Pulled ALL skills from 15 source repositories:
- anthropics/skills: 16 (docs, design, MCP, testing)
- obra/superpowers: 14 (TDD, debugging, agents, planning)
- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
- vercel-labs/agent-skills: 5 (React, design, Vercel)
- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

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

skills/vitest/references/advanced-vi.md

@@ -0,0 +1,249 @@
+---
+name: vi-utilities
+description: vi helper for mocking, timers, utilities
+---
+
+# Vi Utilities
+
+The `vi` helper provides mocking and utility functions.
+
+```ts
+import { vi } from 'vitest'
+```
+
+## Mock Functions
+
+```ts
+// Create mock
+const fn = vi.fn()
+const fnWithImpl = vi.fn((x) => x * 2)
+
+// Check if mock
+vi.isMockFunction(fn) // true
+
+// Mock methods
+fn.mockReturnValue(42)
+fn.mockReturnValueOnce(1)
+fn.mockResolvedValue(data)
+fn.mockRejectedValue(error)
+fn.mockImplementation(() => 'result')
+fn.mockImplementationOnce(() => 'once')
+
+// Clear/reset
+fn.mockClear()    // Clear call history
+fn.mockReset()    // Clear history + implementation
+fn.mockRestore()  // Restore original (for spies)
+```
+
+## Spying
+
+```ts
+const obj = { method: () => 'original' }
+
+const spy = vi.spyOn(obj, 'method')
+obj.method()
+
+expect(spy).toHaveBeenCalled()
+
+// Mock implementation
+spy.mockReturnValue('mocked')
+
+// Spy on getter/setter
+vi.spyOn(obj, 'prop', 'get').mockReturnValue('value')
+```
+
+## Module Mocking
+
+```ts
+// Hoisted to top of file
+vi.mock('./module', () => ({
+  fn: vi.fn(),
+}))
+
+// Partial mock
+vi.mock('./module', async (importOriginal) => ({
+  ...(await importOriginal()),
+  specificFn: vi.fn(),
+}))
+
+// Spy mode - keep implementation
+vi.mock('./module', { spy: true })
+
+// Import actual module inside mock
+const actual = await vi.importActual('./module')
+
+// Import as mock
+const mocked = await vi.importMock('./module')
+```
+
+## Dynamic Mocking
+
+```ts
+// Not hoisted - use with dynamic imports
+vi.doMock('./config', () => ({ key: 'value' }))
+const config = await import('./config')
+
+// Unmock
+vi.doUnmock('./config')
+vi.unmock('./module') // Hoisted
+```
+
+## Reset Modules
+
+```ts
+// Clear module cache
+vi.resetModules()
+
+// Wait for dynamic imports
+await vi.dynamicImportSettled()
+```
+
+## Fake Timers
+
+```ts
+vi.useFakeTimers()
+
+setTimeout(() => console.log('done'), 1000)
+
+// Advance time
+vi.advanceTimersByTime(1000)
+vi.advanceTimersByTimeAsync(1000)  // For async callbacks
+vi.advanceTimersToNextTimer()
+vi.advanceTimersToNextFrame()      // requestAnimationFrame
+
+// Run all timers
+vi.runAllTimers()
+vi.runAllTimersAsync()
+vi.runOnlyPendingTimers()
+
+// Clear timers
+vi.clearAllTimers()
+
+// Check state
+vi.getTimerCount()
+vi.isFakeTimers()
+
+// Restore
+vi.useRealTimers()
+```
+
+## Mock Date/Time
+
+```ts
+vi.setSystemTime(new Date('2024-01-01'))
+expect(new Date().getFullYear()).toBe(2024)
+
+vi.getMockedSystemTime()  // Get mocked date
+vi.getRealSystemTime()    // Get real time (ms)
+```
+
+## Global/Env Mocking
+
+```ts
+// Stub global
+vi.stubGlobal('fetch', vi.fn())
+vi.unstubAllGlobals()
+
+// Stub environment
+vi.stubEnv('API_KEY', 'test')
+vi.stubEnv('NODE_ENV', 'test')
+vi.unstubAllEnvs()
+```
+
+## Hoisted Code
+
+Run code before imports:
+
+```ts
+const mock = vi.hoisted(() => vi.fn())
+
+vi.mock('./module', () => ({
+  fn: mock, // Can reference hoisted variable
+}))
+```
+
+## Waiting Utilities
+
+```ts
+// Wait for callback to succeed
+await vi.waitFor(async () => {
+  const el = document.querySelector('.loaded')
+  expect(el).toBeTruthy()
+}, { timeout: 5000, interval: 100 })
+
+// Wait for truthy value
+const element = await vi.waitUntil(
+  () => document.querySelector('.loaded'),
+  { timeout: 5000 }
+)
+```
+
+## Mock Object
+
+Mock all methods of an object:
+
+```ts
+const original = {
+  method: () => 'real',
+  nested: { fn: () => 'nested' },
+}
+
+const mocked = vi.mockObject(original)
+mocked.method()  // undefined (mocked)
+mocked.method.mockReturnValue('mocked')
+
+// Spy mode
+const spied = vi.mockObject(original, { spy: true })
+spied.method()  // 'real'
+expect(spied.method).toHaveBeenCalled()
+```
+
+## Test Configuration
+
+```ts
+vi.setConfig({
+  testTimeout: 10_000,
+  hookTimeout: 10_000,
+})
+
+vi.resetConfig()
+```
+
+## Global Mock Management
+
+```ts
+vi.clearAllMocks()   // Clear all mock call history
+vi.resetAllMocks()   // Reset + clear implementation
+vi.restoreAllMocks() // Restore originals (spies)
+```
+
+## vi.mocked Type Helper
+
+TypeScript helper for mocked values:
+
+```ts
+import { myFn } from './module'
+vi.mock('./module')
+
+// Type as mock
+vi.mocked(myFn).mockReturnValue('typed')
+
+// Deep mocking
+vi.mocked(myModule, { deep: true })
+
+// Partial mock typing
+vi.mocked(fn, { partial: true }).mockResolvedValue({ ok: true })
+```
+
+## Key Points
+
+- `vi.mock` is hoisted - use `vi.doMock` for dynamic mocking
+- `vi.hoisted` lets you reference variables in mock factories
+- Use `vi.spyOn` to spy on existing methods
+- Fake timers require explicit setup and teardown
+- `vi.waitFor` retries until assertion passes
+
+<!-- 
+Source references:
+- https://vitest.dev/api/vi.html
+-->