refactor(skills): update test file naming from .spec.ts to .test.ts

Update Claude Code skill documentation to reflect the new .test.ts naming
convention for test files:
- Update typescript-testing skill globs from *.spec.ts to *.test.ts
- Update example commands to use .test.ts file paths
- Remove outdated pnpm test:unit command reference
- Update development-workflow skill with new naming convention

Author: ryoppippi

.claude/skills/development-workflow/SKILL.md

@@ -19,8 +19,7 @@ This skill provides all commands and best practices for building, developing, an
 ## Testing
 
 - `pnpm test` - Run all tests (unit, examples, scripts)
-- `pnpm test:unit` - Run only unit tests
-- `pnpm vitest src/path/to/file.spec.ts` - Run a specific test file
+- `pnpm vitest src/path/to/file.test.ts` - Run a specific test file
 - `pnpm vitest -t "test name"` - Run tests matching a pattern
 
 ## Code Quality

.claude/skills/typescript-testing/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: typescript-testing
 description: Use when writing or running tests. Covers Vitest commands, MSW HTTP mocking, fs-fixture for file system tests. (project)
-globs: "*.spec.ts"
+globs: "*.test.ts"
 alwaysApply: false
 ---
 
@@ -13,8 +13,7 @@ This skill guides testing practices for the StackOne SDK using Vitest test runne
 
 The project uses **Vitest** as the test runner. Run tests with:
 - `pnpm test` - Run all tests (unit, examples, scripts)
-- `pnpm test:unit` - Run only unit tests
-- `pnpm vitest src/path/to/file.spec.ts` - Run a specific test file
+- `pnpm vitest src/path/to/file.test.ts` - Run a specific test file
 - `pnpm vitest -t "test name"` - Run tests matching a pattern
 
 ### Vitest Globals