feat(logging): add high_crest_factor tip and improve level tips

[flexiondotorg]

• Add tipHighCrestFactor to detect excessive peak-to-average (crest) ratios
  and prefer SpeechProfile.CrestFactor when available (fires > 20 dB).
• Update tip suppression rules:
  • Do not suppress quiet tips when high_crest_factor also fired (compound case).
  • Suppress quiet tips when too_far_from_mic fires (root-cause).
• Clamp suggested gain increases to available peak headroom and annotate messages when clamping occurs so users understand the headroom constraint.
• Change quiet/too-quiet messages to recommend pop filter/handling checks
  when peaks are already near the ceiling (peak-to-average problem).
• Make clipping/near-clipping messages contextual:
  • Compute and show suggested reduction in dB where appropriate.
  • Emit a distinct message when clipping occurs but recording is otherwise
    very quiet (plosives/handling noise).
• Update and expand recording_tips_test.go to cover:
  • crest-factor rule and speech-profile override behaviour
  • gain clamping, clamped-message variants, and contextual clipping cases

[cubic-dev-ai]

No issues found across 2 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.