DL1001 : Avoid inline ignore pragmas

Description

Inline # hadolint ignore=DLxxxx directives disable lint rules and should be avoided to ensure all checks run.

Goals

• Prevent bypassing lint rules by embedding ignore pragmas.
• Ensure consistent policy enforcement in Dockerfiles.

Specification

1. Parse the Dockerfile and iterate over each instruction and its preceding comments.
2. If any comment or instruction contains the case-insensitive substring hadolint ignore=, emit DL1001.
3. The finding points to the line where the pragma appears.

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