Deepen Account + Stock modules significantly

Account (+400 LOC):
- Accounting reports: Trial Balance, Balance Sheet, Profit & Loss,
  Aged Receivable/Payable, General Ledger (SQL-based generation)
- account.report + account.report.line models
- Analytic accounting: account.analytic.plan, account.analytic.account,
  account.analytic.line models
- Bank statement matching (button_match with 1% tolerance)
- 6 default report definitions seeded
- 8 new actions + 12 new menus (Vendor Bills, Payments, Bank Statements,
  Reporting, Configuration with Chart of Accounts/Journals/Taxes)

Stock (+230 LOC):
- Stock valuation: price_unit + value (computed) on moves and quants
- Reorder rules: stock.warehouse.orderpoint with min/max qty,
  qty_on_hand compute from quants, action_replenish method
- Scrap: stock.scrap model with action_validate (quant transfer)
- Inventory adjustment: stock.quant.adjust wizard (set qty directly)
- Scrap location seeded

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

addons/account/models/account_move.go

@@ -1414,10 +1414,11 @@ func initAccountBankStatement() {
 	)
 
 	// Bank statement line
-	orm.NewModel("account.bank.statement.line", orm.ModelOpts{
+	stLine := orm.NewModel("account.bank.statement.line", orm.ModelOpts{
 		Description: "Bank Statement Line",
 		Order:       "internal_index desc, sequence, id desc",
-	}).AddFields(
+	})
+	stLine.AddFields(
 		orm.Many2one("statement_id", "account.bank.statement", orm.FieldOpts{String: "Statement"}),
 		orm.Many2one("move_id", "account.move", orm.FieldOpts{String: "Journal Entry", Required: true}),
 		orm.Many2one("journal_id", "account.journal", orm.FieldOpts{String: "Journal", Required: true}),
@@ -1434,7 +1435,50 @@ func initAccountBankStatement() {
 		orm.Integer("sequence", orm.FieldOpts{String: "Sequence"}),
 		orm.Char("internal_index", orm.FieldOpts{String: "Internal Index"}),
 		orm.Boolean("is_reconciled", orm.FieldOpts{String: "Is Reconciled"}),
+		orm.Many2one("move_line_id", "account.move.line", orm.FieldOpts{String: "Matched Journal Item"}),
 	)
+
+	// button_match: automatically match bank statement lines to open invoices.
+	// Mirrors: odoo/addons/account/models/account_bank_statement_line.py _find_or_create_bank_statement()
+	stLine.RegisterMethod("button_match", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
+		env := rs.Env()
+		for _, lineID := range rs.IDs() {
+			var amount float64
+			var partnerID *int64
+			err := env.Tx().QueryRow(env.Ctx(),
+				`SELECT COALESCE(amount::float8, 0), partner_id FROM account_bank_statement_line WHERE id = $1`, lineID,
+			).Scan(&amount, &partnerID)
+			if err != nil {
+				return nil, fmt.Errorf("account: read statement line %d: %w", lineID, err)
+			}
+
+			if partnerID == nil {
+				continue
+			}
+
+			// Find unreconciled move lines for this partner with matching amount
+			var matchLineID int64
+			env.Tx().QueryRow(env.Ctx(),
+				`SELECT l.id FROM account_move_line l
+				 JOIN account_move m ON m.id = l.move_id AND m.state = 'posted'
+				 JOIN account_account a ON a.id = l.account_id
+				 WHERE l.partner_id = $1
+				 AND a.account_type IN ('asset_receivable', 'liability_payable')
+				 AND ABS(COALESCE(l.amount_residual::float8, 0)) BETWEEN ABS($2) * 0.99 AND ABS($2) * 1.01
+				 AND COALESCE(l.amount_residual, 0) != 0
+				 ORDER BY ABS(COALESCE(l.amount_residual::float8, 0) - ABS($2)) LIMIT 1`,
+				*partnerID, amount,
+			).Scan(&matchLineID)
+
+			if matchLineID > 0 {
+				// Mark as matched
+				env.Tx().Exec(env.Ctx(),
+					`UPDATE account_bank_statement_line SET move_line_id = $1, is_reconciled = true WHERE id = $2`,
+					matchLineID, lineID)
+			}
+		}
+		return true, nil
+	})
 }
 
 // -- Helper functions for argument parsing in business methods --