feat: Upgrade to Astro with full PDPA compliance

PDPA Features:
✅ Cookie consent banner
✅ Consent logging API
✅ Admin dashboard
✅ Privacy Policy
✅ Terms & Conditions

Technical:
✅ Astro 5.x + Tailwind v4
✅ Docker on port 80
✅ SQLite database
✅ 15 pages built

Ready for Easypanel deployment.

node_modules/diff/libesm/util/distance-iterator.js

@@ -0,0 +1,37 @@
+// Iterator that traverses in the range of [min, max], stepping
+// by distance from a given start position. I.e. for [0, 4], with
+// start of 2, this will iterate 2, 3, 1, 4, 0.
+export default function (start, minLine, maxLine) {
+    let wantForward = true, backwardExhausted = false, forwardExhausted = false, localOffset = 1;
+    return function iterator() {
+        if (wantForward && !forwardExhausted) {
+            if (backwardExhausted) {
+                localOffset++;
+            }
+            else {
+                wantForward = false;
+            }
+            // Check if trying to fit beyond text length, and if not, check it fits
+            // after offset location (or desired location on first iteration)
+            if (start + localOffset <= maxLine) {
+                return start + localOffset;
+            }
+            forwardExhausted = true;
+        }
+        if (!backwardExhausted) {
+            if (!forwardExhausted) {
+                wantForward = true;
+            }
+            // Check if trying to fit before text beginning, and if not, check it fits
+            // before offset location
+            if (minLine <= start - localOffset) {
+                return start - localOffset++;
+            }
+            backwardExhausted = true;
+            return iterator();
+        }
+        // We tried to fit hunk before text beginning and beyond text length, then
+        // hunk can't fit on the text. Return undefined
+        return undefined;
+    };
+}