Spinner while the analysis runs; public API unchanged

New demo UI: clearer intro, entity cards with confidence badges, human-readable abstention reasons

Japanese and Chinese: language choices, examples, eight-language description

Canonical written into Gradio's index template at startup; back to demo.launch (the FastAPI mount at / redirected / to // and broke /gradio_api/call)

Serve the canonical tag server-side: Gradio mounted on FastAPI, middleware writes rel=canonical into the index HTML

Canonical: https://wordlift.io/entity-extraction/ (rel=canonical in the app head, links in the description and README)

Link confidence as the reranker's probability: confident (>=0.7) vs weak links, P31 type chips, more Portuguese examples

feat: add Portuguese (PT) support to the demo

fix: force light theme always

feat: show DBpedia links in entity cards