Attachments, statements, reconciliations, TIN vault, counterparty policy

MCP: books.link_attachment, unlink_attachment, attachments; link_to on
attach_receipt and file_document; record_statement, statements;
books.reconcile previews and, confirmed against a recorded statement,
records the reconciliation; void_reconciliation, reconciliations;
import_bank_csv links its source file; digest lists unreconciled
accounts.

TIN vault: books.set_w9 takes the TIN and the form into the encrypted
vault (last four in the books); books.vendor_1099 include_tins and
save_csv_to for the CPA's copy; books.get_w9; books.purge_tin. A leak
test scans every tool output, the journal, the database, and the blobs.

[books] parties = off | suggest | require (default suggest): every
preview names the entry's party or suggests likely ones; require refuses
to post until it names one or is marked as having none (entry.no_party).

Viewer: documents on every subject page; statements and reconciliation
history per account; reconciliation pages; reconcile and
no-counterparty attention items; party money by period (paid out,
received in, net, what for, by month); Needs attention gets its own
full-width section.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GWVo7x3UHw5kwCUaWxiejX

crates/ledger-gui/src/nav.rs

@@ -59,6 +59,9 @@ pub enum Route {
     Reports(ReportKind),
     Accounts,
     Account(AccountId),
+    /// One reconciliation: its statement, balance, and the lines it
+    /// cleared.
+    Reconciliation(u64),
     /// The fixed asset register.
     Assets,
     /// One fixed asset.
@@ -83,7 +86,7 @@ impl Route {
             Route::Profit => Section::Profit,
             Route::Transactions | Route::Entry(_) => Section::Transactions,
             Route::Reports(_) => Section::Reports,
-            Route::Accounts | Route::Account(_) => Section::Accounts,
+            Route::Accounts | Route::Account(_) | Route::Reconciliation(_) => Section::Accounts,
             Route::Assets | Route::Asset(_) => Section::Assets,
             Route::Parties | Route::Party(_) => Section::Parties,
             Route::Documents | Route::Document(_) => Section::Documents,