Start the setup wizard blank and add a Run setup again button

The first-run seed no longer inserts the original vendor's name, address, contact
details, PAN or bank account; the wizard now starts empty and requires a name and
state. Settings > Data gets a Run setup again button that clears the onboarded flag.
Re-running the wizard keeps the active invoice series unless the prefix or padding
changes. The sample logo moves out of public/ so it no longer ships in the app.

src-tauri/src/db.rs

@@ -436,8 +436,8 @@ fn prune_backups(backup_dir: &Path, keep: usize) -> std::io::Result<()> {
 }
 
 /// Insert the first-run defaults the very first time the app is opened.
-/// Vendor details are pre-filled from the owner's existing invoice. The vendor
-/// has no GSTIN yet, so the defaults describe an unregistered supplier (no tax).
+/// The defaults are neutral: no vendor, bank or tax identity is pre-filled, so the setup wizard
+/// starts blank. The vendor is an unregistered supplier (no tax) until the wizard says otherwise.
 fn seed(conn: &Connection) -> rusqlite::Result<()> {
     let settings_count: i64 =
         conn.query_row("SELECT COUNT(*) FROM app_settings", [], |r| r.get(0))?;
@@ -447,38 +447,8 @@ fn seed(conn: &Connection) -> rusqlite::Result<()> {
                (id, vendor_name, vendor_address, vendor_email, vendor_phone,
                 vendor_pan, vendor_gstin, vendor_state_code, default_tax_rate,
                 default_tax_type, payment_terms_days, currency, onboarded, theme)
-               VALUES (1, ?1, ?2, ?3, ?4, ?5, ?6, '29', 18, 'none', 30, 'INR', 0, 'g10')"#,
-            params![
-                "Test Vendor",
-                "1 Test Road, Bangalore - 560001",
-                "vendor@example.com",
-                "9000000000",
-                "ABCDE1234F",
-                "",
-            ],
-        )?;
-    }
-
-    let bank_count: i64 =
-        conn.query_row("SELECT COUNT(*) FROM bank_accounts", [], |r| r.get(0))?;
-    if bank_count == 0 {
-        conn.execute(
-            r#"INSERT INTO bank_accounts
-               (label, bank_name, account_name, account_no, branch, ifsc, is_default)
-               VALUES (?1, ?2, ?3, ?4, ?5, ?6, 1)"#,
-            params![
-                "Primary",
-                "State Bank of India",
-                "Test Vendor",
-                "000000000000",
-                "000001",
-                "TEST0000001",
-            ],
-        )?;
-        let bank_id = conn.last_insert_rowid();
-        conn.execute(
-            "UPDATE app_settings SET default_bank_id = ?1 WHERE id = 1",
-            params![bank_id],
+               VALUES (1, '', '', '', '', '', '', '', 18, 'none', 30, 'INR', 0, 'g10')"#,
+            [],
         )?;
     }
 
@@ -497,6 +467,25 @@ fn seed(conn: &Connection) -> rusqlite::Result<()> {
     Ok(())
 }
 
+/// Sample vendor and bank for command-logic unit tests (production seeds none). Fake values only.
+#[cfg(test)]
+pub(crate) fn seed_test_fixture(conn: &Connection) -> rusqlite::Result<()> {
+    conn.execute(
+        r#"UPDATE app_settings SET vendor_name = 'Test Vendor', vendor_address = '1 Test Road, Bangalore - 560001',
+           vendor_email = 'vendor@example.com', vendor_phone = '9000000000', vendor_pan = 'ABCDE1234F',
+           vendor_state_code = '29' WHERE id = 1"#,
+        [],
+    )?;
+    conn.execute(
+        r#"INSERT INTO bank_accounts (label, bank_name, account_name, account_no, branch, ifsc, is_default)
+           VALUES ('Primary', 'Test Bank', 'Test Vendor', '000000000000', '000001', 'TEST0000001', 1)"#,
+        [],
+    )?;
+    let bank_id = conn.last_insert_rowid();
+    conn.execute("UPDATE app_settings SET default_bank_id = ?1 WHERE id = 1", params![bank_id])?;
+    Ok(())
+}
+
 /// A migrated, seeded in-memory database for unit tests of the command logic.
 #[cfg(test)]
 pub fn open_in_memory() -> Result<Connection, DbError> {
@@ -504,6 +493,7 @@ pub fn open_in_memory() -> Result<Connection, DbError> {
     conn.pragma_update(None, "foreign_keys", "ON")?;
     migrations().to_latest(&mut conn)?;
     seed(&conn)?;
+    seed_test_fixture(&conn)?;
     Ok(conn)
 }
 
@@ -726,7 +716,7 @@ CREATE INDEX IF NOT EXISTS idx_invoices_created ON invoices(created_at DESC);
             .unwrap();
         assert_eq!(tax_type, "none");
         assert_eq!(gst_reg, "unregistered");
-        assert_eq!(name, "Test Vendor");
+        assert_eq!(name, "");
         assert!(backups_in(&backups).is_empty());
     }