feat: UX redesign — Krug trunk test + flow psychology

fix: embed logo as base64 data URI (Gradio 5.x file/ path broken)

feat: add base64 logo file for inline embedding

style: add logo to header top-left

add: generated logo (scale + magnifying glass, navy blue)

style: full-width layout + higher contrast on buttons, inputs, and text

style: widen container from 960px to 1280px

redesign: polished card components — subtle shadows, refined badges, navy accents

redesign: Doctrine.fr-inspired theme — navy blue palette, Inter font, clean layout

fix: center layout — add margin:0 auto + responsive padding to .gradio-container

fix: use Mistral SDK for synthesis — HF Inference no longer serves Mistral-7B as chat model

fix: date filter was filtering all results — ms timestamps parsed incorrectly (search.py)

fix: date filter was filtering all results — ms timestamps parsed incorrectly (app.py)

fix: use mistralai SDK directly for embeddings — InferenceClient has no Mistral provider

fix: pass provider=mistral to InferenceClient — avoids Hub model lookup for mistral-embed

fix: bump sdk_version to 5.29.1 — avoids HfFolder removal in huggingface_hub>=1.0

fix: replace pyaudioop (not on PyPI) with audioop-lts for Python 3.13 compat

fix: add pyaudioop for Python 3.13 audioop compatibility

fix: remove explicit gradio pin (platform pins via sdk_version)

fix: set sdk_version=5.0.0 for Python 3.13 compatibility

fix: upgrade gradio>=5.0.0 for Python 3.13 compatibility (removes pydub/audioop dependency)

docs: rewrite README for coherence and clarity

feat: initial enirtcod.fr MVP deployment

initial commit