Projects: classes as entities, and the sidebar fits short windows

A project is a class with facts (description, status, kind, party,
dates, links, notes) in one project.set event behind the format
feature projects. Four tools (books.add_project, update_project,
projects, project); documents and decisions link to projects; B-37:
on-spec costs are expensed as incurred, repayment is revenue, and the
unrecovered cost is never below zero (Kani). Viewer: a Projects list
and a project page with its figures, by month and by account. The
sidebar measures its footer instead of reserving a fixed 172 px.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T3gXMVt7XJPi6ens1or9Dj

crates/ledger-mcp/src/scopes.rs

@@ -62,7 +62,7 @@ const C: Needs = PostWhenConfirmed;
 const K: Needs = PostForApprovalRules;
 
 /// Every tool and what it needs (INVARIANT 1).
-pub const TABLE: [(&str, Needs); 115] = [
+pub const TABLE: [(&str, Needs); 119] = [
     ("books.handbook", R),
     ("books.start", R),
     // Settings are committed at once: the settings commit of the plan.
@@ -181,6 +181,10 @@ pub const TABLE: [(&str, Needs); 115] = [
     ("books.add_class", W),
     ("books.list_classes", R),
     ("books.profit_and_loss_by_class", R),
+    ("books.add_project", W),
+    ("books.update_project", W),
+    ("books.projects", R),
+    ("books.project", R),
     ("books.export_cpa_package", A),
     ("books.access_log", A),
     ("books.backup", R),