feat(30-01): add shared hobby configuration with tag mappings

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/shared/hobbyConfig.ts

@@ -0,0 +1,66 @@
+export interface HobbyDefinition {
+	id: string;
+	name: string;
+	icon: string; // Lucide icon name from iconData
+	descriptor: string; // Short tagline shown on card
+	tags: string[]; // Catalog tags to query for this hobby
+}
+
+export const HOBBIES: HobbyDefinition[] = [
+	{
+		id: "bikepacking",
+		name: "Bikepacking",
+		icon: "bike",
+		descriptor: "Ride & camp",
+		tags: ["bikepacking", "cycling", "camping"],
+	},
+	{
+		id: "hiking",
+		name: "Hiking",
+		icon: "mountain",
+		descriptor: "Trail gear",
+		tags: ["hiking", "backpacking", "camping"],
+	},
+	{
+		id: "climbing",
+		name: "Climbing",
+		icon: "mountain-snow",
+		descriptor: "Vertical kit",
+		tags: ["climbing", "mountaineering"],
+	},
+	{
+		id: "cycling",
+		name: "Cycling",
+		icon: "circle-dot",
+		descriptor: "Road & gravel",
+		tags: ["cycling", "road-cycling", "gravel"],
+	},
+	{
+		id: "camping",
+		name: "Camping",
+		icon: "tent",
+		descriptor: "Base camp",
+		tags: ["camping", "backpacking"],
+	},
+	{
+		id: "running",
+		name: "Running",
+		icon: "footprints",
+		descriptor: "Run light",
+		tags: ["running", "trail-running"],
+	},
+];
+
+/** Deduplicate and collect all tags for the given hobby IDs */
+export function getTagsForHobbies(hobbyIds: string[]): string[] {
+	const tagSet = new Set<string>();
+	for (const id of hobbyIds) {
+		const hobby = HOBBIES.find((h) => h.id === id);
+		if (hobby) {
+			for (const t of hobby.tags) {
+				tagSet.add(t);
+			}
+		}
+	}
+	return [...tagSet];
+}