fix(parser/regex): fix Atmos/DD+ audio tags

[Nuclei8234]

• Fix Atmos audio tag regex to include ddpa
• Fix DD+ audio tag regex to support optional 'a' suffix

Summary by CodeRabbit

• Bug Fixes
  • Improved recognition of Atmos and Dolby Digital Plus audio format variants.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

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📥 Commits

Reviewing files that changed from the base of the PR and between 80ed92e and 58cdb4d.

📒 Files selected for processing (1)

• packages/core/src/parser/regex.ts

Walkthrough

The changes extend audio tag regex patterns in the parser to recognise additional format variants. The Atmos pattern now supports "ddpa" with an optional digit suffix, and the DD+ pattern is enhanced to accept an optional "pa" variant after the digital marker.

Changes

Cohort / File(s)	Summary
Audio tag regex enhancements packages/core/src/parser/regex.ts	Updated audioTags regex to support "ddpa" variant for Atmos matching and extended DD+ pattern to recognise optional "pa" suffix after the digital +/plus group

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3–5 minutes

• Verify regex patterns correctly match intended audio codec variants (Atmos "ddpa" and DD+ "pa")
• Confirm no unintended pattern matches or overlaps with existing audio tag definitions

Possibly related PRs

• fix: improve regex parser #419: Also modifies audioTags regex in the same file; broadened DD+ pattern to allow additional format qualifiers

Suggested reviewers

• Viren070

Poem

🐰 Hop, hop, whisper 'ddpa'—
Audio patterns dance anew,
Regex hops where formats play,
Atmos twirls in variants true,
Parser leaps to match the sound! ✨

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: fixing audio tag regex patterns for Atmos and DD+.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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