Add landing page + Starlight docs site (#375)

* udpated matrix

* feat(site): add landing page + Starlight docs site

Astro + Starlight site in site/ — a flat/paper editorial landing page
plus 18 docs pages seeded from the README. Monochrome theme, hairline
rules, square corners, live GitHub star count, light default + dark
toggle. Deploys to GitHub Pages via .github/workflows/deploy-site.yml.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

site/src/content/docs/core-concepts/resolution.md

@@ -0,0 +1,30 @@
+---
+title: Resolution & Frameworks
+description: How CodeGraph connects references and links routes to handlers.
+---
+
+Extraction produces nodes and raw edges; **resolution** turns names into real connections.
+
+## Reference resolution
+
+After parsing, CodeGraph resolves:
+
+- **Imports** → the source files they point at (including tsconfig path aliases and cargo workspace members).
+- **Calls** → their definitions, by import resolution and name matching.
+- **Inheritance** → `extends` / `implements` between types.
+
+## Framework awareness
+
+CodeGraph recognizes web-framework routing files and emits `route` nodes linked by `references` edges to their handler classes or functions — so querying the callers of a view or controller surfaces the URL pattern that binds it. See [Framework Routes](/codegraph/guides/framework-routes/) for the full list of recognized frameworks.
+
+## Dynamic-dispatch coverage
+
+Static parsing misses computed and indirect calls, so flows can break at dynamic dispatch. CodeGraph bridges several of these boundaries with synthesizers so a flow connects end-to-end:
+
+- Callback / observer registration
+- `EventEmitter` channels
+- React re-render (`setState` → `render`)
+- JSX child (`render` → child component)
+- Django ORM descriptors
+
+Every synthesized edge is marked `provenance: 'heuristic'` with the site that wired it, and is shown inline wherever a path crosses it.