fix: compiler warnings and code patterns

[ovitrif]

Note

Stacked PR targeting:

• feat: localize hardcoded strings #603 (i18n changes)

Merge #603 first, then this PR will auto-retarget to master.

Description

This PR (excluding i18n changes in #603):

1. Adds dynamic boost fee time confirmation estimates
2. Implements weather widget API response caching
3. Fixes WalletRepo state management by replacing uiState with individual repo states
4. Cleans up deprecated code, warnings, and TODOs across the codebase
5. Fixes all errors to use class instead of data class or data object
6. Adds context to logs where it was missing
7. Refactors most try/catch statements to runCatching
8. Restructures Env constants
9. Replaces combined main uiState with direct use of the separated node & wallet state
10. Simplifies LightningService by removing redundant state management
11. Removes deprecated migration test
12. Remove completed TODOs and fixes or suppresses remaining ones
13. Updates AGP & adds compose-stability-analyzer plugin
14. Fixes or suppress all lint warnings
15. Updates README and documentation adding recommended IDE plugins with setup guide
16. Captures and cancels job for running the LDK event listener(s)
17. Fixes toast blur on wallet restore error screen
18. Removes logs reset on wallet wipe (now only for debug builds)

Preview

N/A

QA Notes

1. Boost Fee Estimates

• Open a pending on-chain transaction
• Tap boost/accelerate
• Verify fee slider shows dynamic time estimates (e.g., "~10 min", "~30 min")

2. Weather Widget

• Enable weather widget
• Observe API calls are cached (check logs)
• Widget should still update but without excessive network requests

3. Regression Testing

• Verify wallet balance displays correctly
• Test sending and receiving Lightning payments
• Confirm background notifications work as expected

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