feat: ledger-gui — a read-only, live desktop view of the books

egui/wgpu app for owners and their accountant: Overview, Cash, Profit,
Transactions (with rendered receipts and journal history), Reports
(statements with interval columns, comparisons, drill-down), Accounts,
Documents, Company, Journal; Ctrl+K palette; back/forward; light/dark.
Follows the journal live (~30 ms from write to screen). --demo opens a
deterministic demo company, also used for screenshot tests.

Engine: ledger-store Snapshot (read-only, incremental, tolerant of a
half-written tail); ledger-core analysis (intervals, balance series,
P&L by interval, cash flows); ledger-config extracted from ledger-mcp
with the full company profile and cash_accounts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MtYEaR6M6Ybdhm6X98BWNu

crates/ledger-gui/Cargo.toml

@@ -0,0 +1,35 @@
+[package]
+name = "ledger-gui"
+version = "0.1.0"
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+description = "Read-only, live desktop view of wanderbooks books."
+
+[[bin]]
+name = "ledger-gui"
+path = "src/main.rs"
+
+[dependencies]
+ledger-core = { path = "../ledger-core" }
+ledger-store = { path = "../ledger-store" }
+ledger-config = { path = "../ledger-config" }
+eframe = { version = "0.36", default-features = false, features = ["default_fonts", "wgpu", "wayland", "x11", "persistence"] }
+egui = "0.36"
+egui_extras = { version = "0.36", features = ["image", "datepicker", "serde"] }
+egui-phosphor = "0.14"
+hayro = { version = "0.8", features = ["embed-fonts"] }
+image = { version = "0.25", default-features = false, features = ["png", "jpeg", "webp"] }
+notify = "8"
+jiff = "0.2"
+chrono = "0.4"
+rust_decimal = "1"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+
+[dev-dependencies]
+chrono = "0.4"
+egui_kittest = { version = "0.36", features = ["wgpu", "snapshot", "eframe"] }
+
+[lints]
+workspace = true