* feat(db): add pricing config fields to proxy_config table
- Add default_cost_multiplier field per app type
- Add pricing_model_source field (request/response)
- Add request_model field to proxy_request_logs table
- Implement schema migration v5
* feat(api): add pricing config commands and provider meta fields
- Add get/set commands for default cost multiplier
- Add get/set commands for pricing model source
- Extend ProviderMeta with cost_multiplier and pricing_model_source
- Register new commands in Tauri invoke handler
* fix(proxy): apply cost multiplier to total cost only
- Move multiplier calculation from per-item to total cost
- Add resolve_pricing_config for provider-level override
- Include request_model and cost_multiplier in usage logs
- Return new fields in get_request_logs API
* feat(ui): add pricing config UI and usage log enhancements
- Add pricing config section to provider advanced settings
- Refactor PricingConfigPanel to compact table layout
- Display all three apps (Claude/Codex/Gemini) in one view
- Add multiplier column and request model display to logs
- Add frontend API wrappers for pricing config
* feat(i18n): add pricing config translations
- Add zh/en/ja translations for pricing defaults config
- Add translations for multiplier, requestModel, responseModel
- Add provider pricing config translations
* fix(pricing): align backfill cost calculation with real-time logic
- Fix backfill to deduct cache_read_tokens from input (avoid double billing)
- Apply multiplier only to total cost, not to each item
- Add multiplier display in request detail panel with i18n support
- Use AppError::localized for backend error messages
- Fix init_proxy_config_rows to use per-app default values
- Fix silent failure in set_default_cost_multiplier/set_pricing_model_source
- Add clippy allow annotation for test mutex across await
* style: format code with cargo fmt and prettier
* fix(tests): correct error type assertions in proxy DAO tests
The tests expected AppError::InvalidInput but the DAO functions use
AppError::localized() which returns AppError::Localized variant.
Updated assertions to match the correct error type with key validation.
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Co-authored-by: Jason <farion1231@gmail.com>
Dex Miller