feat(journal): add per-user mood journal module (task 86)

Ship journal entries with mood tracking, insights, and Recharts charts.

Adds v1 API endpoints per ADR 0005 and migration 0020_journal_entries.

src/app/api/v1/journal/entries/[id]/route.ts

@@ -0,0 +1,33 @@
+import { apiJson, withApiHandler } from "@/lib/api-handler";
+import {
+  deleteJournalEntryForScope,
+  updateJournalEntryForScope,
+} from "@/modules/journal/server/actions";
+import { updateJournalEntryInput } from "@/modules/journal/server/schemas";
+import { getJournalEntryForScope } from "@/modules/journal/server/queries";
+
+export async function GET(request: Request, context: { params: Promise<{ id: string }> }) {
+  const { id } = await context.params;
+  return withApiHandler(request, async (scope) => {
+    const entry = await getJournalEntryForScope(scope, id);
+    return apiJson(entry);
+  });
+}
+
+export async function PATCH(request: Request, context: { params: Promise<{ id: string }> }) {
+  const { id } = await context.params;
+  return withApiHandler(request, async (scope, req) => {
+    const body: unknown = await req.json();
+    const parsed = updateJournalEntryInput.parse({ ...(body as object), id });
+    const entry = await updateJournalEntryForScope(scope, parsed);
+    return apiJson(entry);
+  });
+}
+
+export async function DELETE(request: Request, context: { params: Promise<{ id: string }> }) {
+  const { id } = await context.params;
+  return withApiHandler(request, async (scope) => {
+    await deleteJournalEntryForScope(scope, { id });
+    return apiJson({ ok: true });
+  });
+}

src/app/api/v1/journal/entries/route.ts

@@ -0,0 +1,20 @@
+import { apiJson, withApiHandler } from "@/lib/api-handler";
+import { createJournalEntryForScope } from "@/modules/journal/server/actions";
+import { journalEntryInput } from "@/modules/journal/server/schemas";
+import { listJournalEntriesForScope } from "@/modules/journal/server/queries";
+
+export async function GET(request: Request) {
+  return withApiHandler(request, async (scope) => {
+    const entries = await listJournalEntriesForScope(scope);
+    return apiJson(entries);
+  });
+}
+
+export async function POST(request: Request) {
+  return withApiHandler(request, async (scope, req) => {
+    const body: unknown = await req.json();
+    const parsed = journalEntryInput.parse(body);
+    const entry = await createJournalEntryForScope(scope, parsed);
+    return apiJson(entry, 201);
+  });
+}

src/app/journal/[id]/page.tsx

@@ -0,0 +1,10 @@
+import { notFound } from "next/navigation";
+import { JournalEntryEditor } from "@/modules/journal/components/entry-editor";
+import { getJournalEntry } from "@/modules/journal/server/queries";
+
+export default async function JournalEntryPage({ params }: { params: Promise<{ id: string }> }) {
+  const { id } = await params;
+  const entry = await getJournalEntry(id).catch(() => null);
+  if (!entry) notFound();
+  return <JournalEntryEditor entry={entry} />;
+}

src/app/journal/insights/page.tsx

@@ -0,0 +1,21 @@
+import Link from "next/link";
+import { DetailBackLink } from "@/components/detail-back-link";
+import { InsightsView } from "@/modules/journal/components/insights-view";
+import { listJournalEntries } from "@/modules/journal/server/queries";
+
+export default async function JournalInsightsPage() {
+  const entries = await listJournalEntries({ limit: 500 });
+
+  return (
+    <div className="mx-auto grid w-full max-w-5xl gap-4 min-w-0">
+      <DetailBackLink href="/journal" label="Journal" />
+      <div className="flex items-center justify-between gap-3">
+        <h2 className="serif text-[22px] tracking-tight">Insights</h2>
+        <Link href="/journal/mood" className="text-[13px] text-[var(--accent)] hover:underline">
+          Mood charts
+        </Link>
+      </div>
+      <InsightsView entries={entries} />
+    </div>
+  );
+}

src/app/journal/mood/page.tsx

@@ -0,0 +1,21 @@
+import Link from "next/link";
+import { DetailBackLink } from "@/components/detail-back-link";
+import { MoodTrackerView } from "@/modules/journal/components/mood-tracker-view";
+import { listJournalEntries } from "@/modules/journal/server/queries";
+
+export default async function JournalMoodPage() {
+  const entries = await listJournalEntries({ limit: 500 });
+
+  return (
+    <div className="mx-auto grid w-full max-w-5xl gap-4 min-w-0">
+      <DetailBackLink href="/journal" label="Journal" />
+      <div className="flex items-center justify-between gap-3">
+        <h2 className="serif text-[22px] tracking-tight">Mood tracker</h2>
+        <Link href="/journal/insights" className="text-[13px] text-[var(--accent)] hover:underline">
+          View insights
+        </Link>
+      </div>
+      <MoodTrackerView entries={entries} />
+    </div>
+  );
+}

src/app/journal/new/page.tsx

@@ -0,0 +1,5 @@
+import { JournalEntryEditor } from "@/modules/journal/components/entry-editor";
+
+export default function NewJournalEntryPage() {
+  return <JournalEntryEditor />;
+}

src/app/journal/page.tsx

@@ -0,0 +1,9 @@
+import { recordedDayKey } from "@/modules/journal/day-key";
+import { JournalIndex } from "@/modules/journal/components/journal-index";
+import { listJournalEntries } from "@/modules/journal/server/queries";
+
+export default async function JournalPage() {
+  const entries = await listJournalEntries();
+  const entryDays = [...new Set(entries.map((entry) => recordedDayKey(entry.recordedAt)))];
+  return <JournalIndex entries={entries} entryDays={entryDays} />;
+}