fix: resolve inherited re-exported import aliases

[ChargingFoxSec]

Summary

Fixes #3019.

This resolves inherited import aliases that are re-exported from an imported file.

Root cause

resolve_remapping_and_renaming resolves direct import aliases, then falls back to the current file scope. When the inherited name is itself an alias re-exported from another imported file, the fallback does not continue through accessible imported scopes, so Slither fails with:

AssertionError: Contract KeeperCompatibleInterface not found

Changes

• Add recursive scope lookup through accessible imported scopes.
• Resolve renamed contracts through each scope's renaming map.
• Add a solc parsing regression test for inherited re-exported import aliases.

Testing

• uv run slither /tmp/slither-repro-3019/src/KeepersCounter.sol --compile-force-framework solc --solc-remaps @chainlink/=/tmp/slither-repro-3019/lib/chainlink-evm/ --disable-color
• uv run pytest tests/e2e/solc_parsing/test_ast_parsing.py -k import_aliases_reexport
• uv run pytest tests/e2e/solc_parsing/test_ast_parsing.py -k "complex_imports/import_aliases/test.sol"
• uv run ruff check slither/solc_parsing/slither_compilation_unit_solc.py tests/e2e/solc_parsing/test_ast_parsing.py
• uv run ruff format --check slither/solc_parsing/slither_compilation_unit_solc.py tests/e2e/solc_parsing/test_ast_parsing.py