- Support dot notation in derived expressions (e.g., prompt_tokens_details.cached_tokens)
- Auto-flatten nested dict keys to underscore format for eval
- Calculate uncached_prompt_tokens and cached_tokens from raw usage data
- Test case: qwen3.7-max pricing with derived fields
Test result:
- uncached_prompt_tokens = prompt_tokens - cached_tokens = 1075
- Total cost: 0.007116 元 ✓
- unit_values: only include units actually used in pricing_data
- get_pricing_display: support new format (price_factors + unit_prices + unit)
- Add fallback unit values for common units
- generate_formula_from_factors(): auto-generate formula from price_factors array
- get_pricing_display(ppid): return structured human-readable pricing data
- wwwroot/api/get_pricing_display.dspy: API endpoint for frontend consumption
- Supports price_factors display layer (label, unit_price, unit_label)
- Backward compatible: old YAML without pricing_type/price_factors works
- Registered via load_pricing() with ServerEnv
hasattr only checks attribute existence, but event_dispatcher
can exist as None when running standalone (backend_accounting.py).
Use getattr with None check instead.
- Remove bgcolor/color/border hardcoded dark theme values
- Use css:'card' class for navigation card
- Let system theme handle styling for proper contrast
- Create index.ui with standardized card layout (#1E293B, 12px radius)
- Simplify menu.ui to point to index.ui entry point
- Add page header with Title2 + description text
- Use consistent SVG icon style (36px, 1.5 stroke width)
