Enhance payment processing and rental features

- Updated the BTCPay service to support internal Lightning invoices with private route hints, improving payment routing for users with private channels.
- Added reconciliation methods for pending rents and subscriptions to ensure missed payments are processed on startup.
- Enhanced the rental and subscription services to handle payments in satoshis, aligning with Lightning Network standards.
- Improved the rental modal and content detail components to display rental status and pricing more clearly, including a countdown for rental expiration.
- Refactored various components to streamline user experience and ensure accurate rental access checks.

src/lib/accounts.ts

@@ -34,22 +34,33 @@ NostrConnectSigner.publishMethod = (relays, event) => {
 }
 
 /**
- * Load saved accounts from localStorage
+ * Load saved accounts from localStorage.
+ * When no saved data exists (e.g. site data was cleared),
+ * explicitly reset the accountManager so stale in-memory
+ * state doesn't keep the UI in a "logged in" limbo.
  */
 export function loadAccounts() {
   try {
     const saved = localStorage.getItem(STORAGE_KEY)
-    if (saved) {
-      const accounts = JSON.parse(saved)
-      accountManager.fromJSON(accounts, true)
+    if (!saved) {
+      // Nothing persisted — make sure the manager is clean.
+      // This handles partial site-data clears and HMR reloads.
+      const current = accountManager.active
+      if (current) {
+        try { accountManager.removeAccount(current) } catch { /* noop */ }
+      }
+      return
+    }
 
-      // Restore active account
-      const activeId = localStorage.getItem(ACTIVE_KEY)
-      if (activeId) {
-        const account = accountManager.getAccount(activeId)
-        if (account) {
-          accountManager.setActive(account)
-        }
+    const accounts = JSON.parse(saved)
+    accountManager.fromJSON(accounts, true)
+
+    // Restore active account
+    const activeId = localStorage.getItem(ACTIVE_KEY)
+    if (activeId) {
+      const account = accountManager.getAccount(activeId)
+      if (account) {
+        accountManager.setActive(account)
       }
     }
   } catch (e) {