chore(main): release 1.38.0

[github-actions]

🤖 I have created a release beep boop

1.38.0 (2026-08-26)

Features

• history: add session recording and history viewer (429f1b8), closes #175
• history: put synced chart values on their own curves (522a139), closes #175
• history: whole-row click target and synced multi-chart hover values (d78b45f), closes #175
• tray: add procedurally-drawn icons to the tray menu rows (26cae81), closes #178
• tray: blink the recording indicator instead of a static dot (9362390), closes #175

Bug Fixes

• alerts: fire threshold notifications automatically (650229c), closes #179
• ci: add manual trigger to winget-submit as fallback for tag-ref reruns (999ecc2)
• gpu: guard against fatal wgpu device errors instead of panicking (47091fb), closes #176
• history: harden session index against corruption and cross-process races (3ee9186), closes #175
• history: log when a session's CSV file can't be opened (150547f), closes #175
• history: polish session list and detail UI (640c87c), closes #175
• history: refresh session list when recording starts or stops (4401f47), closes #175
• history: satisfy newer clippy's unnecessary_sort_by lint (fef9373), closes #175
• history: stop chart y-axis from getting stuck out of range (92c83e9), closes #175
• history: suffix float literals CI's newer rustc now requires (0d4a8ec), closes #175

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