Add task management: aggregated Tasks view (list + calendar) with inline due/priority, check off, set from row, and drag-to-reschedule (#62)

src/lib/api.ts

@@ -13,6 +13,7 @@ import type {
   ImportResult,
   BackupEntry,
   VersionEntry,
+  TaskItem,
 } from "./types";
 
 export async function openVault(path: string): Promise<void> {
@@ -331,6 +332,39 @@ export async function setBackupSettings(
   });
 }
 
+// ── Tasks ──
+
+export async function getTasks(): Promise<TaskItem[]> {
+  return invoke("get_tasks");
+}
+
+export async function setTaskDone(
+  notePath: string,
+  line: number,
+  rawLine: string,
+  done: boolean,
+): Promise<void> {
+  return invoke("set_task_done", { notePath, line, rawLine, done });
+}
+
+export async function setTaskPriority(
+  notePath: string,
+  line: number,
+  rawLine: string,
+  priority: string | null,
+): Promise<void> {
+  return invoke("set_task_priority", { notePath, line, rawLine, priority });
+}
+
+export async function setTaskDue(
+  notePath: string,
+  line: number,
+  rawLine: string,
+  due: string | null,
+): Promise<void> {
+  return invoke("set_task_due", { notePath, line, rawLine, due });
+}
+
 // ── Sync (WebDAV) ──
 
 export async function setSyncSettings(