Add `mling` wrapper binary that delegates to `mingling-cli`, enabling
separate binary names while maintaining Cargo conventions.

Use `quote` token stream matching instead of debug formatting
to detect variable references in `unnecessary_render_result_creation`,
fixing false positives from string-based matching.

Group dependencies by purpose with inline comments for clarity

generation

Introduce `metadata` and `mlint` subcommands, wire up `cargo_metadata`
for manifest analysis, and enable procedural macro support in editors

Add initial project structure for the mingling-cli scaffolding tool,
including Cargo manifest and entry point