feat(ledger): add bookkeeping workbench and transaction views

- Add transactions_dirty table and zero-tolerance cleansing action

- Implement bookkeeping workbench (/bookkeeping) with searchable Combobox channel selector and card suffix / account identifier

- Implement transaction ledger (/transactions) with date groupings, multi-currency metrics, and filters

- Update AGENTS.md guidelines for Base UI Select and Combobox bindings

components/nav-main.tsx

@@ -1,8 +1,8 @@
-"use client";
+"use client"
 
-import Link from "next/link";
-import { usePathname } from "next/navigation";
-import { type LucideIcon } from "lucide-react";
+import Link from "next/link"
+import { usePathname } from "next/navigation"
+import { type LucideIcon } from "lucide-react"
 
 import {
   SidebarGroup,
@@ -11,24 +11,24 @@ import {
   SidebarMenuButton,
   SidebarMenuItem,
   useSidebar,
-} from "@/components/ui/sidebar";
+} from "@/components/ui/sidebar"
 
 export interface NavMainItem {
-  title: string;
-  url: string;
-  icon: LucideIcon;
-  badge?: string;
+  title: string
+  url: string
+  icon: LucideIcon
+  badge?: string
 }
 
 export function NavMain({ items }: { items: NavMainItem[] }) {
-  const pathname = usePathname();
-  const { isMobile, setOpenMobile } = useSidebar();
+  const pathname = usePathname()
+  const { isMobile, setOpenMobile } = useSidebar()
 
   const handleNavigation = () => {
     if (isMobile) {
-      setOpenMobile(false);
+      setOpenMobile(false)
     }
-  };
+  }
 
   return (
     <SidebarGroup>
@@ -37,14 +37,15 @@ export function NavMain({ items }: { items: NavMainItem[] }) {
       </SidebarGroupLabel>
       <SidebarMenu>
         {items.map((item) => {
-          const Icon = item.icon;
+          const Icon = item.icon
           return (
             <SidebarMenuItem key={item.title}>
               <SidebarMenuButton
                 isActive={
                   item.url === "/"
                     ? pathname === "/"
-                    : pathname === item.url || pathname.startsWith(`${item.url}/`)
+                    : pathname === item.url ||
+                      pathname.startsWith(`${item.url}/`)
                 }
                 tooltip={item.title}
                 render={<Link href={item.url} onClick={handleNavigation} />}
@@ -58,9 +59,9 @@ export function NavMain({ items }: { items: NavMainItem[] }) {
                 )}
               </SidebarMenuButton>
             </SidebarMenuItem>
-          );
+          )
         })}
       </SidebarMenu>
     </SidebarGroup>
-  );
+  )
 }