analyze: print next-step guidance when the database is written

When analyze finishes it prints the processed-file counts and the total time, but nothing about what to do next:

Finalizing database. Successfully processed files: 2, Failed files: 0, Files without TypeTrees: 0, Ignored files: 0

Total time: 0.256 s

In a usability experiment, an AI agent given only the binary discovered the built-in views (object_view, view_breakdown_by_type, ...) by running .tables in sqlite3 and called it "a lucky/pleasant discovery, not something --help mentioned". For someone using the downloaded binary, stdout plus the one URL in --help is the entire discovery surface.

Proposal: after finalizing, print a short next-step hint, something like:

Database written to database.db. Start with the object_view and view_breakdown_by_type views.
Schema reference: https://github.com/Unity-Technologies/UnityDataTools/blob/main/Documentation/analyzer.md

The URL should be version-pinned once the --help documentation link is (tracked separately).

Commencez par la sortie de finalisation de la commande analyze et suivez le code qui affiche le nombre de fichiers traités et le temps total. Ajoutez les indications proposées concernant la base de données, la vue et la référence du schéma après l’écriture de la base de données, puis exécutez analyze sur une entrée d’exemple pour vérifier le texte de stdout et l’URL.