chore: bootstrap repository with governance docs

Initialize git, add Apache-2.0 LICENSE, .gitattributes (LF line
endings), AGENTS.md (entry points, stack, discovery order, baseline
checks), RUNBOOK.md (dev boot, prod deploy with overlay, ingestion,
failures, rollback, scaling notes), .env.prod.example with rotated
credential placeholders, and dev-only warnings on .env.example.

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

frontend/tailwind.config.ts

@@ -0,0 +1,131 @@
+import type { Config } from "tailwindcss";
+import animate from "tailwindcss-animate";
+
+const config: Config = {
+  darkMode: ["class"],
+  content: ["./index.html", "./src/**/*.{ts,tsx}"],
+  theme: {
+    container: {
+      center: true,
+      padding: "1.5rem",
+      screens: {
+        "2xl": "1440px",
+      },
+    },
+    extend: {
+      fontFamily: {
+        sans: [
+          "InterVariable",
+          "Inter",
+          "ui-sans-serif",
+          "system-ui",
+          "-apple-system",
+          "Segoe UI",
+          "Roboto",
+          "sans-serif",
+        ],
+        mono: ["JetBrains Mono", "ui-monospace", "SFMono-Regular", "monospace"],
+      },
+      colors: {
+        border: "hsl(var(--border))",
+        input: "hsl(var(--input))",
+        ring: "hsl(var(--ring))",
+        background: "hsl(var(--background))",
+        foreground: "hsl(var(--foreground))",
+        primary: {
+          DEFAULT: "hsl(var(--primary))",
+          foreground: "hsl(var(--primary-foreground))",
+          50: "hsl(var(--primary-50))",
+          100: "hsl(var(--primary-100))",
+          200: "hsl(var(--primary-200))",
+          500: "hsl(var(--primary-500))",
+          600: "hsl(var(--primary-600))",
+          700: "hsl(var(--primary-700))",
+        },
+        secondary: {
+          DEFAULT: "hsl(var(--secondary))",
+          foreground: "hsl(var(--secondary-foreground))",
+        },
+        destructive: {
+          DEFAULT: "hsl(var(--destructive))",
+          foreground: "hsl(var(--destructive-foreground))",
+        },
+        warning: {
+          DEFAULT: "hsl(var(--warning))",
+          foreground: "hsl(var(--warning-foreground))",
+        },
+        success: {
+          DEFAULT: "hsl(var(--success))",
+          foreground: "hsl(var(--success-foreground))",
+        },
+        muted: {
+          DEFAULT: "hsl(var(--muted))",
+          foreground: "hsl(var(--muted-foreground))",
+        },
+        accent: {
+          DEFAULT: "hsl(var(--accent))",
+          foreground: "hsl(var(--accent-foreground))",
+        },
+        popover: {
+          DEFAULT: "hsl(var(--popover))",
+          foreground: "hsl(var(--popover-foreground))",
+        },
+        card: {
+          DEFAULT: "hsl(var(--card))",
+          foreground: "hsl(var(--card-foreground))",
+        },
+        surface: {
+          DEFAULT: "hsl(var(--surface))",
+          raised: "hsl(var(--surface-raised))",
+          sunken: "hsl(var(--surface-sunken))",
+        },
+      },
+      borderRadius: {
+        lg: "var(--radius)",
+        md: "calc(var(--radius) - 4px)",
+        sm: "calc(var(--radius) - 8px)",
+        xl: "calc(var(--radius) + 4px)",
+        "2xl": "calc(var(--radius) + 10px)",
+      },
+      boxShadow: {
+        soft: "0 1px 2px rgba(15,23,42,0.04), 0 4px 16px rgba(15,23,42,0.04)",
+        glass: "0 1px 0 rgba(255,255,255,0.6) inset, 0 8px 32px rgba(15,23,42,0.06)",
+        ring: "0 0 0 4px hsl(var(--primary) / 0.18)",
+        elevated: "0 12px 40px -12px rgba(15,23,42,0.18)",
+      },
+      backgroundImage: {
+        "grid-light":
+          "linear-gradient(to right, hsl(var(--border)) 1px, transparent 1px), linear-gradient(to bottom, hsl(var(--border)) 1px, transparent 1px)",
+        "radial-fade":
+          "radial-gradient(60% 40% at 30% 20%, hsl(var(--primary) / 0.10), transparent 70%)",
+      },
+      keyframes: {
+        "accordion-down": {
+          from: { height: "0" },
+          to: { height: "var(--radix-accordion-content-height)" },
+        },
+        "accordion-up": {
+          from: { height: "var(--radix-accordion-content-height)" },
+          to: { height: "0" },
+        },
+        shimmer: {
+          "0%": { backgroundPosition: "-200% 0" },
+          "100%": { backgroundPosition: "200% 0" },
+        },
+        "fade-in-up": {
+          "0%": { opacity: "0", transform: "translateY(6px)" },
+          "100%": { opacity: "1", transform: "translateY(0)" },
+        },
+      },
+      animation: {
+        "accordion-down": "accordion-down 0.2s ease-out",
+        "accordion-up": "accordion-up 0.2s ease-out",
+        shimmer: "shimmer 1.6s linear infinite",
+        "fade-in-up": "fade-in-up 0.3s ease-out",
+      },
+    },
+  },
+  plugins: [animate],
+};
+
+export default config;