Add tower and facing filters to Units page

Add Building filter (East Tower, West Tower, 23 S Downing) and
Facing filter (North/South based on unit code last digit) to the
Units page. Downing units pass through the facing filter since
it only applies to E/W tower units. Bump version to 1.1.0.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "apartment-dashboard",
   "private": true,
-  "version": "1.0.1",
+  "version": "1.1.0",
   "type": "module",
   "scripts": {
     "dev": "vite",

src/App.jsx

@@ -31,6 +31,8 @@ const ApartmentDashboard = () => {
   // Filters
   const [priceFilter, setPriceFilter] = useState({ min: 0, max: 10000 });
   const [bedroomFilter, setBedroomFilter] = useState('all');
+  const [towerFilter, setTowerFilter] = useState('all');
+  const [facingFilter, setFacingFilter] = useState('all');
   const [sortBy, setSortBy] = useState('unitCode');
   const [sortDirection, setSortDirection] = useState('asc');
   const [watchedUnits, setWatchedUnits] = useState(new Set());
@@ -418,7 +420,19 @@ const ApartmentDashboard = () => {
     const price = unit.currentPrice || 0;
     const matchesPrice = price >= priceFilter.min && (priceFilter.max === 10000 || price <= priceFilter.max);
     const matchesBedroom = bedroomFilter === 'all' || (unit.bedCount != null && unit.bedCount.toString() === bedroomFilter);
-    return matchesPrice && matchesBedroom;
+    const matchesTower = towerFilter === 'all'
+      || (towerFilter === 'east' && unit.unitCode?.startsWith('E'))
+      || (towerFilter === 'west' && unit.unitCode?.startsWith('W'))
+      || (towerFilter === 'downing' && /^\d/.test(unit.unitCode));
+    const matchesFacing = facingFilter === 'all'
+      || (() => {
+        if (/^\d/.test(unit.unitCode)) return true;
+        const lastDigit = parseInt(unit.unitCode?.slice(-1));
+        if (facingFilter === 'north') return lastDigit % 2 === 0;
+        if (facingFilter === 'south') return lastDigit % 2 !== 0;
+        return true;
+      })();
+    return matchesPrice && matchesBedroom && matchesTower && matchesFacing;
   }).sort((a, b) => {
     const dir = sortDirection === 'asc' ? 1 : -1;
     switch (sortBy) {
@@ -814,6 +828,25 @@ const ApartmentDashboard = () => {
                   <option value="1">1 BR</option>
                   <option value="2">2 BR</option>
                 </select>
+                <select
+                  value={towerFilter}
+                  onChange={(e) => setTowerFilter(e.target.value)}
+                  className="border rounded-md px-3 py-2"
+                >
+                  <option value="all">All Buildings</option>
+                  <option value="east">East Tower</option>
+                  <option value="west">West Tower</option>
+                  <option value="downing">23 S Downing</option>
+                </select>
+                <select
+                  value={facingFilter}
+                  onChange={(e) => setFacingFilter(e.target.value)}
+                  className="border rounded-md px-3 py-2"
+                >
+                  <option value="all">All Facing</option>
+                  <option value="north">North Facing</option>
+                  <option value="south">South Facing</option>
+                </select>
                 <select
                   value={`${sortBy}-${sortDirection}`}
                   onChange={(e) => {