feat: detect meta-repos, microservices, and single-project repos

[Fyb3roptik]

Summary

Adds a repoType field to ProjectInfo that classifies repository structure beyond the existing isMonorepo boolean. Previously all multi-workspace repos were labelled "Monorepo" regardless of their actual structure.

New RepoType values:

• single — one project, no workspaces
• monorepo — shared codebase with multiple packages/apps under common tooling
• microservices — multiple independently deployable services
• meta — aggregation of independent projects (git submodules)

Detection signals:

• meta: .gitmodules present at root
• microservices: k8s/, kubernetes/, or helm/ directory at root — or 2+ workspaces each containing a Dockerfile
• monorepo: existing workspace detection (unchanged)
• single: no workspaces detected

Changes

• types.ts — adds RepoType type and repoType field on ProjectInfo
• scanner.ts — adds classifyRepoType() function called during project detection
• core.ts, formatter.ts, ai-config.ts, html-report.ts, wiki.ts, mcp-server.ts — all output surfaces updated to show the correct label ("Meta-repo:", "Microservices:", or "Monorepo:")

Tests

Four new test cases in detectors.test.ts covering each repoType value, including meta-repo detection via .gitmodules and microservices detection via Dockerfiles and k8s directory.

[Fyb3roptik]

Looks like this fixes #33 and also looks like test is failing due to GITHUB_TOKEN?