feat: tooltips, two-column timer, font selector, tray behavior, icons, readme

- Custom tooltip directive (WCAG AAA) on every button in the app
- Two-column timer layout with sticky hero and recent entries sidebar
- Timer font selector with 16 monospace Google Fonts and live preview
- UI font selector with 15+ Google Fonts
- Close-to-tray and minimize-to-tray settings
- New app icons (no-glow variants), platform icon set
- Mini timer pop-out window
- Favorites strip with drag-reorder and inline actions
- Comprehensive README with feature documentation
- Remove tracked files that belong in gitignore

src-tauri/src/database.rs

@@ -19,6 +19,7 @@ pub fn init_db(conn: &Connection) -> Result<(), rusqlite::Error> {
         "ALTER TABLE clients ADD COLUMN tax_id TEXT",
         "ALTER TABLE clients ADD COLUMN payment_terms TEXT",
         "ALTER TABLE clients ADD COLUMN notes TEXT",
+        "ALTER TABLE clients ADD COLUMN currency TEXT",
     ];
     for sql in &migration_columns {
         match conn.execute(sql, []) {
@@ -52,6 +53,8 @@ pub fn init_db(conn: &Connection) -> Result<(), rusqlite::Error> {
         "ALTER TABLE projects ADD COLUMN budget_amount REAL DEFAULT NULL",
         "ALTER TABLE projects ADD COLUMN rounding_override INTEGER DEFAULT NULL",
         "ALTER TABLE projects ADD COLUMN timeline_override TEXT DEFAULT NULL",
+        "ALTER TABLE projects ADD COLUMN notes TEXT",
+        "ALTER TABLE projects ADD COLUMN currency TEXT",
     ];
     for sql in &project_migrations {
         match conn.execute(sql, []) {
@@ -76,9 +79,10 @@ pub fn init_db(conn: &Connection) -> Result<(), rusqlite::Error> {
         [],
     )?;
 
-    // Migrate tasks table - add estimated_hours column (safe to re-run)
+    // Migrate tasks table (safe to re-run)
     let task_migrations = [
         "ALTER TABLE tasks ADD COLUMN estimated_hours REAL DEFAULT NULL",
+        "ALTER TABLE tasks ADD COLUMN hourly_rate REAL DEFAULT NULL",
     ];
     for sql in &task_migrations {
         match conn.execute(sql, []) {
@@ -302,6 +306,22 @@ pub fn init_db(conn: &Connection) -> Result<(), rusqlite::Error> {
         [],
     )?;
 
+    // Migrate calendar_events table - add description column (safe to re-run)
+    let calendar_migrations = [
+        "ALTER TABLE calendar_events ADD COLUMN description TEXT",
+    ];
+    for sql in &calendar_migrations {
+        match conn.execute(sql, []) {
+            Ok(_) => {}
+            Err(e) => {
+                let msg = e.to_string();
+                if !msg.contains("duplicate column") {
+                    return Err(e);
+                }
+            }
+        }
+    }
+
     conn.execute(
         "CREATE TABLE IF NOT EXISTS timesheet_locks (
             id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -345,6 +365,38 @@ pub fn init_db(conn: &Connection) -> Result<(), rusqlite::Error> {
         [],
     )?;
 
+    conn.execute(
+        "CREATE TABLE IF NOT EXISTS invoice_payments (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            invoice_id INTEGER NOT NULL,
+            amount REAL NOT NULL,
+            date TEXT NOT NULL,
+            method TEXT,
+            notes TEXT,
+            created_at TEXT DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (invoice_id) REFERENCES invoices(id) ON DELETE CASCADE
+        )",
+        [],
+    )?;
+
+    conn.execute(
+        "CREATE TABLE IF NOT EXISTS recurring_invoices (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            client_id INTEGER NOT NULL,
+            template_id TEXT,
+            line_items_json TEXT NOT NULL,
+            tax_rate REAL DEFAULT 0,
+            discount REAL DEFAULT 0,
+            notes TEXT,
+            recurrence_rule TEXT NOT NULL,
+            next_due_date TEXT NOT NULL,
+            enabled INTEGER DEFAULT 1,
+            created_at TEXT DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (client_id) REFERENCES clients(id)
+        )",
+        [],
+    )?;
+
     // Insert default settings
     conn.execute(
         "INSERT OR IGNORE INTO settings (key, value) VALUES ('hourly_rate', '50')",