feat(page): initial landing page with dev tooling

Pre-launch landing page for The Lofty Project — a 501(c)(4) connecting
creative talent with leftist organizing. Includes hero with blur-in
line-by-line animation, three-pillar section (Talent/Media/Infrastructure),
interest signup buttons, and responsive design with fluid typography.

Tooling: Astro 5, Biome linting/formatting, Lefthook git hooks,
Commitizen with conventional commits, and project documentation.

lefthook.yml

@@ -0,0 +1,19 @@
+# Lefthook configuration
+# https://github.com/evilmartians/lefthook
+
+commit-msg:
+  commands:
+    commitlint:
+      run: bunx commitlint --edit {1}
+
+pre-commit:
+  parallel: true
+  commands:
+    biome:
+      glob: "*.{ts,tsx,js,jsx,json,astro}"
+      run: bunx @biomejs/biome check --no-errors-on-unmatched {staged_files}
+
+pre-push:
+  commands:
+    build:
+      run: bun run build