🧹 [code health improvement] Clean up JSON parsing error handling in WasmDatabaseEngine

[google-labs-jules]

🎯 What: Replaced single-line try-catches in updateCell and updateCellBatch that swallowed exceptions with a console.warn when parsing JSON, refactoring them into multiline clean catch blocks that assign a fallback {}.
💡 Why: Avoids polluting the console output for a known, handled failure mode (where a malformed string value safely falls back to {} for merging), and ensures currentObj's state is predictably clean and its TypeScript type is correct (unknown).
✅ Verification: Verified by compiling the file via bun build and executing the sqlite-db and worker_endpoint unit tests successfully using bun x tsx. Visual diffs and code review passed.
✨ Result: Improved readability and deterministic state without unnecessary warnings.

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PR created automatically by Jules for task 14392814717410581703 started by @zknpr

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Project	Deployment	Actions	Updated (UTC)
sq-lite-explorer	Ready	Preview, Comment	Jun 13, 2026 5:40pm

[zknpr]

Closing in favor of #470, which addresses the same JSON-parse duplication but (a) extracts a reusable parseJsonValueForPatching() helper used by both call sites and (b) preserves the parse-failure console.warn. This PR drops that warning, turning a parse failure into a silent fallback, which the project avoids (no silent failures). Thanks!

[google-labs-jules]

Closing in favor of #470, which addresses the same JSON-parse duplication but (a) extracts a reusable parseJsonValueForPatching() helper used by both call sites and (b) preserves the parse-failure console.warn. This PR drops that warning, turning a parse failure into a silent fallback, which the project avoids (no silent failures). Thanks!

Understood. Acknowledging that this work is now obsolete in favor of #470 and stopping work on this task.