[dajiaohuang]

🔍 What was changed

Inspect the optional second callable parameter as a ReflectionType, and inject the database only for an exact named DatabaseInterface type. Keep the existing explicit-argument calling convention for other types. Remove the two obsolete Psalm suppressions for the old expression.

🤔 Why?

Fixes #574. A supported three-element typecast rule with an untyped or union-typed second argument prevents getRepository(...)->findByPK() from loading the entity. A single-parameter callable with an empty argument list also raises an undefined-index warning. The regression uses real repository loading and synthetic SQLite rows, with a typed control.

📝 Checklist

• Regression tests added to the shared driver suite (untyped, union, single parameter, typed control).
• New cases fail on the base: two raw Errors and an undefined-index warning; pass with this change (4 tests, 40 assertions on SQLite/PHP 8.3.35).
• Unit suite: 383 tests, 1,211 assertions passed.
• SQLite suite with both independent typecast/collection fixes: 1,321 tests, 30,354 assertions; upstream 10 skipped / 3 incomplete unchanged.
• Composer validate --strict; changed-file code style; git diff --check.

Static analysis is not green on the base: Psalm 6.20.0 reports 12 errors before changes. The combined fixes report 11 pre-existing errors outside the changed paths (HasMany, ToOneTrait, Select); the typecast null-reference error is removed. No suppressions were added. Other PHP versions and MySQL/PostgreSQL/SQLServer suites were not run locally.

📃 Documentation

No API/default changes; callable rules already support explicit arguments.