Exclude comments from recipe hash calculation in parseRecipe

[akritkbehera]

Description:

Comments in the recipe portion (after ---) are currently included when computing the package hash. Changing a comment triggers unnecessary rebuilds even though the actual build logic hasn't changed.
The full recipe including comment lines is stored in spec["recipe"] and used in hash calculation

Proposed Behavior

Strip comment lines (lines starting with #) from the recipe before storing, so that:

• Comment-only changes don't alter the package hash
• Rebuilds are only triggered by actual recipe logic changes
• We can have comments in recipe.