auto-di-macros

Procedural macro implementation for auto-di.

Applications should depend on auto-di, not this crate directly. The runtime crate re-exports the supported macros:

• #[singleton]
• #[provider]
• #[injectable] with field-level #[inject(...)]
• #[injected] with parameter-level #[inject]; use #[injected(fallible)] to return resolution errors to the caller
• #[qualifier(...)]
• #[configuration]
• #[configuration_properties(...)]
• #[application]

Macro expansion supports renamed Cargo dependencies through proc-macro-crate and emits compile-time diagnostics for invalid constructors, unsupported injection types, and direct provider-to-provider method calls.