Initial commit: Quiet Thanks gratitude app

A calm, private gratitude and mood log built with Next.js 16, TypeScript,
Tailwind CSS, and SQLite/Drizzle ORM.

Features:
- Quick check-in with autosave (800ms debounce)
- Optional mood selector (5 levels) with accessibility labels
- Optional tags with tap-to-add from recent
- Timeline with weekly reflection card
- Filters by mood, tag, and rough day
- Export to Markdown and JSON
- Dark mode default
- Delete with undo toast
- Docker deployment ready

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/components/WeeklyReflection.tsx

@@ -0,0 +1,65 @@
+"use client";
+
+import type { EntryWithTags } from "@/lib/types";
+import { isWithinWeek } from "@/lib/utils/date";
+
+interface WeeklyReflectionProps {
+  entries: EntryWithTags[];
+}
+
+export function WeeklyReflection({ entries }: WeeklyReflectionProps) {
+  // Filter to last 7 days
+  const weekEntries = entries.filter((e) => isWithinWeek(e.date));
+
+  if (weekEntries.length === 0) {
+    return null;
+  }
+
+  // Count tag occurrences
+  const tagCounts = new Map<string, { name: string; count: number }>();
+  for (const entry of weekEntries) {
+    for (const tag of entry.tags) {
+      const existing = tagCounts.get(tag.id);
+      if (existing) {
+        existing.count++;
+      } else {
+        tagCounts.set(tag.id, { name: tag.name, count: 1 });
+      }
+    }
+  }
+
+  // Get top 3 tags
+  const topTags = Array.from(tagCounts.values())
+    .sort((a, b) => b.count - a.count)
+    .slice(0, 3);
+
+  // Generate summary
+  let summary = "";
+  if (topTags.length > 0) {
+    const tagNames = topTags.map((t) => capitalize(t.name));
+    if (tagNames.length === 1) {
+      summary = `You mentioned: ${tagNames[0]}.`;
+    } else if (tagNames.length === 2) {
+      summary = `You mentioned: ${tagNames[0]} and ${tagNames[1]}.`;
+    } else {
+      summary = `You mentioned: ${tagNames.slice(0, -1).join(", ")}, and ${tagNames[tagNames.length - 1]}.`;
+    }
+  }
+
+  return (
+    <div className="bg-surface border border-border rounded-xl p-4 mb-6">
+      <h2 className="text-sm font-medium text-muted mb-2">This week</h2>
+      <div className="flex items-baseline gap-4 mb-2">
+        <span className="text-2xl font-light">{weekEntries.length}</span>
+        <span className="text-sm text-muted">
+          {weekEntries.length === 1 ? "entry" : "entries"}
+        </span>
+      </div>
+      {summary && <p className="text-sm text-muted italic">{summary}</p>}
+    </div>
+  );
+}
+
+function capitalize(str: string): string {
+  return str.charAt(0).toUpperCase() + str.slice(1);
+}