feat: Add event collection and event page structure

- Introduced a new events collection in config.ts with schema validation.
- Created a new event markdown file for the WarGear event.
- Updated German translations to include new event-related strings.
- Modified PageLayout to support a wide layout option.
- Enhanced announcements page to improve tag filtering and post rendering.
- Implemented dynamic event pages with detailed event information and fight plans.
- Added an index page for events to list all upcoming events.

src/components/event/EleminationDisplay.svelte

@@ -0,0 +1,120 @@
+<script lang="ts">
+    import type { ExtendedEvent, EventFight, ResponseGroups, ResponseRelation } from "@type/event.ts";
+    import type { EleminationViewConfig } from "./types";
+    import EventCard from "./EventCard.svelte";
+    import EventFightChip from "./EventFightChip.svelte";
+    import { onMount, onDestroy, tick } from "svelte";
+    import { FightConnector, fightConnector } from "./connections.svelte.ts";
+
+    const { event, config }: { event: ExtendedEvent; config: EleminationViewConfig } = $props();
+
+    const defaultGroup: ResponseGroups = {
+        id: -1,
+        name: "Elimination",
+        pointsPerWin: 0,
+        pointsPerLoss: 0,
+        pointsPerDraw: 0,
+        type: "ELIMINATION_STAGE",
+        points: null,
+    };
+
+    function buildStages(ev: ExtendedEvent, finalFightId: number): EventFight[][] {
+        const fightMap = new Map<number, EventFight>(ev.fights.map((f) => [f.id, f]));
+        const relationsByFight = new Map<number, ResponseRelation[]>();
+        for (const rel of ev.relations) {
+            const list = relationsByFight.get(rel.fight) ?? [];
+            list.push(rel);
+            relationsByFight.set(rel.fight, list);
+        }
+
+        const finalFight = fightMap.get(finalFightId);
+        if (!finalFight) return [];
+
+        const stages: EventFight[][] = [];
+        let currentLayer: EventFight[] = [finalFight];
+        const visited = new Set<number>([finalFight.id]);
+
+        while (currentLayer.length) {
+            stages.push(currentLayer);
+            const nextLayer: EventFight[] = [];
+            for (const fight of currentLayer) {
+                const rels = relationsByFight.get(fight.id) ?? [];
+                for (const rel of rels) {
+                    if (rel.type === "FIGHT" && rel.fromFight) {
+                        const src = fightMap.get(rel.fromFight.id) ?? rel.fromFight;
+                        if (src && !visited.has(src.id)) {
+                            visited.add(src.id);
+                            nextLayer.push(src);
+                        }
+                    }
+                }
+            }
+            currentLayer = nextLayer;
+        }
+
+        stages.reverse();
+
+        return stages;
+    }
+
+    function stageName(index: number, fights: EventFight[]): string {
+        const count = fights.length;
+        switch (count) {
+            case 1:
+                return `Finale`;
+            case 2:
+                return "Halbfinale";
+            case 4:
+                return "Viertelfinale";
+            case 8:
+                return "Achtelfinale";
+            case 16:
+                return "Sechzehntelfinale";
+            default:
+                return `Runde ${index + 1}`;
+        }
+    }
+
+    const stages = $derived(buildStages(event, config.finalFight));
+
+    const connector = $fightConnector;
+
+    onDestroy(() => {
+        connector.clearAllConnections();
+    });
+
+    function buildConnections() {
+        if (!connector) return;
+        connector.clearConnections();
+
+        for (const rel of event.relations) {
+            if (rel.type !== "FIGHT" || !rel.fromFight) continue;
+            const fromEl = document.getElementById(`fight-${rel.fromFight.id}`) as HTMLElement | null;
+            const toEl = document.getElementById(`fight-${rel.fight}-team-${rel.team.toLowerCase()}`) as HTMLElement | null;
+            if (fromEl && toEl) {
+                connector.addConnection(fromEl, toEl, "#9ca3af");
+            }
+        }
+    }
+
+    onMount(async () => {
+        await tick();
+        buildConnections();
+    });
+</script>
+
+{#if stages.length === 0}
+    <p class="text-gray-400 italic">Keine Eliminationsdaten gefunden.</p>
+{:else}
+    <div class="flex gap-12">
+        {#each stages as stage, index}
+            <div class="flex flex-col justify-center">
+                <EventCard title={stageName(index, stage)}>
+                    {#each stage as fight}
+                        <EventFightChip {fight} group={fight.group ?? defaultGroup} />
+                    {/each}
+                </EventCard>
+            </div>
+        {/each}
+    </div>
+{/if}