Add production QA analyzer view

[CryptoJones]

Summary

• add the PROD/production analyzer layout with playbook-derived mix QA panels
• add pure production helper math and unit coverage
• document the new tab, options, and next roadmap items

Tests

• /usr/bin/gcc -O2 -std=c99 -Wall -o /tmp/test_pitch tests/test_pitch.c -lm && /tmp/test_pitch
• /usr/bin/gcc -O2 -std=c99 -Wall -o /tmp/test_lufs tests/test_lufs.c -lm && /tmp/test_lufs
• /usr/bin/gcc -O2 -std=c99 -Wall -o /tmp/test_prod tests/test_prod.c -lm && /tmp/test_prod
• git diff --check
• ./build-linux.sh

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