Replace the long feature-dump landing page with a lean "Welcome to
Semantica" page: a two-line problem/positioning statement (deterministic
semantic layer, no LLM required for graph construction, reasoning, or
provenance), five capability bullets, the multi-provider quickstart
snippet, and a 4-step onboarding path. Drops the redundant module
table, industry-use-case grid, and duplicate link lists in favor of
linking out to Core Concepts, guides, and the API reference. Keeps a
collapsed module-list accordion so the page still satisfies
docs_check.py's full-module-coverage check.
Mohd Kaif
6ba433fea0