Extends NearbyStationsRequest to accept `postcode` (full or outcode) as an alternative to lat/lng. PostcodeService resolves it via postcodes.io and falls through to coordinates. Also adds SearchResource to the Filament admin panel for viewing logged search activity with fuel type filter and price/distance stats columns. Includes SQLite GREATEST/LEAST function polyfills in AppServiceProvider for test compatibility.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- New method uses web_search_20260209 server-side tool so Claude fetches
48h of oil/geopolitical news autonomously before predicting direction
- Prompt uses raw prices only — no pre-computed EWMA indicators
- pause_turn loop handles server-side search continuation (up to 5 iters)
- generatePrediction() now tries context method first, falls back to
generateLlmPrediction(), then EWMA
- Default model updated to claude-sonnet-4-6
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
