feat: initial project scaffold with Watch companion app

src/constants/colors.ts

@@ -0,0 +1,13 @@
+export const COLORS = {
+  primary: "#0ea5e9",
+  primaryDark: "#0284c7",
+  primaryLight: "#e0f2fe",
+  background: "#ffffff",
+  surface: "#f8fafc",
+  text: "#0f172a",
+  textSecondary: "#64748b",
+  border: "#e2e8f0",
+  success: "#10b981",
+  warning: "#f59e0b",
+  error: "#ef4444",
+} as const;

src/constants/poolLengths.ts

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+export const POOL_LENGTHS = [25, 50] as const;
+
+export const DEFAULT_POOL_LENGTH = 25;

src/constants/strokes.ts

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+export const STROKE_TYPES = [
+  "Freestyle",
+  "Backstroke",
+  "Breaststroke",
+  "Butterfly",
+  "Mixed",
+] as const;
+
+export const STROKE_COLORS: Record<string, string> = {
+  Freestyle: "#0ea5e9",
+  Backstroke: "#8b5cf6",
+  Breaststroke: "#10b981",
+  Butterfly: "#f59e0b",
+  Mixed: "#6b7280",
+};