supabase / supabase / 26163090378

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fix(studio): correct gp3 IOPS validation for small disks (#45957)

- Fix gp3 max-IOPS calculation: was `3000 × size`, is slightly more complicated. The old multiplier let Studio accept IOPS values that the platform API would reject.
- Block IOPS/throughput edits when the disk is smaller than the minimum required for custom IOPS (6 GB for gp3). Previously, a throughput-only change on a 2 GB disk would still ship `provisionedIOPS: 3000` in the payload and get rejected with: `Invalid IOPS value for gp3 volume 3000. Minimum is 3000. Max is 500 IOPS per GB or 16,000, whichever is lower.`
- Show a NoticeBar prompting users to grow the disk first, with a one-click button to bump it to the minimum (mirrors the existing "Change to LARGE Compute" pattern).
- Surface the helpful "Larger Disk size required" message for all disk sizes instead of a cryptic "Invalid IOPS value due to invalid disk size" fallback for disks < 8 GB.

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