backend: initial commit

site/astro.config.mjs

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+import { defineConfig } from "astro/config";
+import svelte from "@astrojs/svelte";
+import tailwind from "@astrojs/tailwind";
+
+export default defineConfig({
+  integrations: [svelte(), tailwind()],
+  output: "static",
+  // When hosting at a subdirectory (e.g. GitHub Pages project site), set:
+  // base: "/repo-name",
+});

site/package.json

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+{
+  "name": "bincio-site",
+  "type": "module",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "astro dev",
+    "build": "astro build",
+    "preview": "astro preview",
+    "astro": "astro"
+  },
+  "dependencies": {
+    "@astrojs/svelte": "^7.0.0",
+    "@astrojs/tailwind": "^5.1.0",
+    "astro": "^5.0.0",
+    "maplibre-gl": "^5.0.0",
+    "@observablehq/plot": "^0.6.0",
+    "svelte": "^5.0.0",
+    "tailwindcss": "^3.4.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.0.0",
+    "typescript": "^5.7.0"
+  }
+}

site/src/lib/types.ts

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+/** TypeScript types mirroring BAS v1.0 schema. */
+
+export type Sport = "cycling" | "running" | "hiking" | "walking" | "swimming" | "other";
+export type SubSport = "road" | "mountain" | "gravel" | "indoor" | "trail" | "track" | null;
+export type Privacy = "public" | "blur_start" | "no_gps" | "private";
+
+export interface ActivitySummary {
+  id: string;
+  title: string;
+  sport: Sport;
+  sub_sport: SubSport;
+  started_at: string;        // ISO 8601
+  distance_m: number | null;
+  duration_s: number | null;
+  moving_time_s: number | null;
+  elevation_gain_m: number | null;
+  avg_speed_kmh: number | null;
+  max_speed_kmh: number | null;
+  avg_hr_bpm: number | null;
+  max_hr_bpm: number | null;
+  avg_cadence_rpm: number | null;
+  avg_power_w: number | null;
+  source: string | null;
+  privacy: Privacy;
+  detail_url: string | null;
+  track_url: string | null;
+}
+
+export interface BASIndex {
+  bas_version: string;
+  owner: { handle: string; display_name: string; avatar_url: string | null };
+  generated_at: string;
+  shards: Array<{ year: number; url: string; count: number }>;
+  activities: ActivitySummary[];
+}
+
+export interface Timeseries {
+  t: number[];
+  lat: number[] | null;
+  lon: number[] | null;
+  elevation_m: (number | null)[];
+  speed_kmh: (number | null)[];
+  hr_bpm: (number | null)[];
+  cadence_rpm: (number | null)[];
+  power_w: (number | null)[];
+  temperature_c: (number | null)[];
+}
+
+export interface ActivityDetail extends ActivitySummary {
+  description: string | null;
+  elevation_loss_m: number | null;
+  max_power_w: number | null;
+  gear: string | null;
+  device: string | null;
+  bbox: [number, number, number, number] | null;
+  start_latlng: [number, number] | null;
+  end_latlng: [number, number] | null;
+  laps: Lap[];
+  timeseries: Timeseries;
+  strava_id: string | null;
+  duplicate_of: string | null;
+  custom: Record<string, unknown>;
+}
+
+export interface Lap {
+  index: number;
+  started_at: string;
+  duration_s: number | null;
+  distance_m: number | null;
+  elevation_gain_m: number | null;
+  avg_speed_kmh: number | null;
+  avg_hr_bpm: number | null;
+  avg_power_w: number | null;
+}

site/tailwind.config.mjs

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+/** @type {import('tailwindcss').Config} */
+export default {
+  content: ["./src/**/*.{astro,html,js,jsx,md,mdx,svelte,ts,tsx,vue}"],
+  darkMode: "class",
+  theme: {
+    extend: {
+      colors: {
+        // BincioActivity accent — override via CSS variable in site_config
+        accent: "var(--color-accent, #00c8ff)",
+      },
+      fontFamily: {
+        sans: ["Inter", "system-ui", "sans-serif"],
+        mono: ["JetBrains Mono", "monospace"],
+      },
+    },
+  },
+  plugins: [],
+};

site/tsconfig.json

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+{
+  "extends": "astro/tsconfigs/strict",
+  "compilerOptions": {
+    "baseUrl": ".",
+    "paths": {
+      "@lib/*": ["src/lib/*"],
+      "@components/*": ["src/components/*"]
+    }
+  }
+}