test: add Xquik OpenAPI 3.1 fixture

[kriptoburak]

Summary

• add a compact Xquik OpenAPI 3.1 fixture for header-authenticated X search
• cover parser normalization and MCP tool generation from the fixture
• add current Xquik documentation and the required independent-service disclosure
• synchronize the lockfile with all existing direct dependencies

Independent Repository Fix

The committed lockfile omitted @smithery/sdk, esbuild, and zod, so the documented frozen install failed before tests could run. This repair synchronizes the lockfile and restores reproducible pnpm install --frozen-lockfile.

Validation

• pnpm install --frozen-lockfile
• pnpm test - 49 passed
• pnpm build
• JSON parsing for the fixture
• git diff --check

[kriptoburak]

Rebuilt this contribution on the current main branch as one signed commit. The Xquik OpenAPI 3.1 parser and tool-generation coverage remains intact, with current documentation and disclosure metadata. I also repaired an independent repository issue: the committed lockfile omitted 3 existing direct dependencies, so frozen installs failed. The synchronized lockfile now passes pnpm install --frozen-lockfile; all 49 tests and the TypeScript build pass.