🔒 [Fix insecure randomness for Savepoint names]

[google-labs-jules]

🎯 What: Replaced insecure Math.random() with crypto.randomUUID() when generating SAVEPOINT names in WasmDatabaseEngine.ts. Also consolidated duplicate savepoint name generation into createSavepointName.
⚠️ Risk: The previous implementation used Math.random().toString(36).slice(2, 8) to generate savepoint names. This insecure source of randomness allows potential guessing of savepoint names, risking conflicts or injection in nested transactions.
🛡️ Solution: Used a secure mechanism (crypto.randomUUID().replace(/-/g, '').substring(0, 8)) to generate random strings for savepoints, imported from platform/cryptoShim.

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PR created automatically by Jules for task 15767844736222331648 started by @zknpr

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Project	Deployment	Actions	Updated (UTC)
sq-lite-explorer	Ready	Preview, Comment	Jun 8, 2026 12:28pm

[google-labs-jules]

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[zknpr]

Duplicate of #449, which implements the same fix (Math.random → crypto for SAVEPOINT names) more cleanly: full-UUID entropy and it consolidates both call sites through createSavepointName. Merging #449 instead. Thanks Jules. 🙏

[google-labs-jules]

Duplicate of #449, which implements the same fix (Math.random → crypto for SAVEPOINT names) more cleanly: full-UUID entropy and it consolidates both call sites through createSavepointName. Merging #449 instead. Thanks Jules. 🙏

Understood. Acknowledging that this work is now obsolete and stopping work on this task.