From 50b6f807fc886b475d1670057a77a66e9d784901 Mon Sep 17 00:00:00 2001
From: Marcel <marcel@familienarchiv>
Date: Fri, 12 Jun 2026 23:01:37 +0200
Subject: [PATCH] feat(timeline): add EventType enum
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PERSONAL/HISTORICAL classify a curated timeline event. The string value
names are a stable frontend styling contract (family vs. muted world
accent) — no mapping layer; renaming requires a coordinated frontend
change. First piece of the new timeline domain (Zeitstrahl, issue #774).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 .../familienarchiv/timeline/EventType.java      | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 backend/src/main/java/org/raddatz/familienarchiv/timeline/EventType.java

diff --git a/backend/src/main/java/org/raddatz/familienarchiv/timeline/EventType.java b/backend/src/main/java/org/raddatz/familienarchiv/timeline/EventType.java
new file mode 100644
index 00000000..f392f3c5
--- /dev/null
+++ b/backend/src/main/java/org/raddatz/familienarchiv/timeline/EventType.java
@@ -0,0 +1,17 @@
+package org.raddatz.familienarchiv.timeline;
+
+/**
+ * Kind of a curated {@link TimelineEvent}.
+ *
+ * <p>The string value names are a <strong>stable frontend styling contract</strong>: the
+ * Svelte timeline components hard-code {@code "PERSONAL"} (family accent) and
+ * {@code "HISTORICAL"} (muted world accent) as Tailwind class-map keys. There is no
+ * mapping layer — renaming either value requires a coordinated frontend change. See
+ * ADR-040.
+ */
+public enum EventType {
+    /** A family/personal event (birth, wedding, move) — rendered with the family accent. */
+    PERSONAL,
+    /** A world/historical event providing context — rendered with the muted world accent. */
+    HISTORICAL
+}