From a1f510f7deb91849d2cd53b4691f1b1cbb3f4dc8 Mon Sep 17 00:00:00 2001
From: you <you@example.com>
Date: Mon, 23 Mar 2026 18:44:45 +0000
Subject: [PATCH] =?UTF-8?q?feat:=20deep-linkable=20analytics=20tabs=20?=
 =?UTF-8?q?=E2=80=94=20#/analytics=3Ftab=3Dcollisions?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Parses ?tab= from hash URL and activates that tab on load.
e.g. #/analytics?tab=collisions → Hash Issues tab
---
 public/analytics.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/public/analytics.js b/public/analytics.js
index 64bfc19e..8d5feed4 100644
--- a/public/analytics.js
+++ b/public/analytics.js
@@ -104,6 +104,18 @@
       renderTab(_currentTab);
     });
 
+    // Deep-link: #/analytics?tab=collisions
+    const hashParams = location.hash.split('?')[1] || '';
+    const urlTab = new URLSearchParams(hashParams).get('tab');
+    if (urlTab) {
+      const tabBtn = analyticsTabs.querySelector(`[data-tab="${urlTab}"]`);
+      if (tabBtn) {
+        analyticsTabs.querySelectorAll('.tab-btn').forEach(b => b.classList.remove('active'));
+        tabBtn.classList.add('active');
+        _currentTab = urlTab;
+      }
+    }
+
     RegionFilter.init(document.getElementById('analyticsRegionFilter'));
     RegionFilter.onChange(function () { loadAnalytics(); });