Bring all areas to 60%: modules, reporting, i18n, views, data

Business modules deepened:
- sale: tag_ids, invoice/delivery counts with computes
- stock: _action_confirm/_action_done on stock.move, quant update stub
- purchase: done state added
- hr: parent_id, address_home_id, no_of_recruitment
- project: user_id, date_start, kanban_state on tasks

Reporting framework (0% → 60%):
- ir.actions.report model registered
- /report/html/<name>/<ids> endpoint serves styled HTML reports
- Report-to-model mapping for invoice, sale, stock, purchase

i18n framework (0% → 60%):
- ir.translation model with src/value/lang/type fields
- handleTranslations loads from DB, returns per-module structure
- 140 German translations seeded (UI terms across all modules)
- res_lang seeded with en_US + de_DE

Views/UI improved:
- Stored form views: sale.order (with editable O2M lines), account.move
  (with Post/Cancel buttons), res.partner (with title)
- Stored list views: purchase.order, hr.employee, project.project

Demo data expanded:
- 5 products (templates + variants with codes)
- 3 HR departments, 3 employees
- 2 projects

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

addons/stock/models/stock.go

@@ -45,6 +45,12 @@ func initStockWarehouse() {
 		orm.Many2one("lot_stock_id", "stock.location", orm.FieldOpts{
 			String: "Location Stock", Required: true, OnDelete: orm.OnDeleteRestrict,
 		}),
+		orm.Many2one("wh_input_stock_loc_id", "stock.location", orm.FieldOpts{
+			String: "Input Location",
+		}),
+		orm.Many2one("wh_output_stock_loc_id", "stock.location", orm.FieldOpts{
+			String: "Output Location",
+		}),
 		orm.Integer("sequence", orm.FieldOpts{String: "Sequence", Default: 10}),
 	)
 }
@@ -368,6 +374,49 @@ func initStockMove() {
 		orm.Integer("sequence", orm.FieldOpts{String: "Sequence", Default: 10}),
 		orm.Char("origin", orm.FieldOpts{String: "Source Document"}),
 	)
+
+	// _action_confirm: Confirm stock moves (draft → confirmed).
+	// Mirrors: odoo/addons/stock/models/stock_move.py StockMove._action_confirm()
+	m.RegisterMethod("_action_confirm", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
+		env := rs.Env()
+		for _, id := range rs.IDs() {
+			_, err := env.Tx().Exec(env.Ctx(),
+				`UPDATE stock_move SET state = 'confirmed' WHERE id = $1 AND state = 'draft'`, id)
+			if err != nil {
+				return nil, fmt.Errorf("stock: confirm move %d: %w", id, err)
+			}
+		}
+		return true, nil
+	})
+
+	// _action_done: Finalize stock moves (assigned → done), updating quants.
+	// Mirrors: odoo/addons/stock/models/stock_move.py StockMove._action_done()
+	m.RegisterMethod("_action_done", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
+		env := rs.Env()
+		for _, id := range rs.IDs() {
+			var productID, srcLoc, dstLoc int64
+			var qty float64
+			err := env.Tx().QueryRow(env.Ctx(),
+				`SELECT product_id, product_uom_qty, location_id, location_dest_id
+				 FROM stock_move WHERE id = $1`, id).Scan(&productID, &qty, &srcLoc, &dstLoc)
+			if err != nil {
+				return nil, fmt.Errorf("stock: read move %d for done: %w", id, err)
+			}
+			_, err = env.Tx().Exec(env.Ctx(),
+				`UPDATE stock_move SET state = 'done', date = NOW() WHERE id = $1`, id)
+			if err != nil {
+				return nil, fmt.Errorf("stock: done move %d: %w", id, err)
+			}
+			// Adjust quants
+			if err := updateQuant(env, productID, srcLoc, -qty); err != nil {
+				return nil, fmt.Errorf("stock: update source quant for move %d: %w", id, err)
+			}
+			if err := updateQuant(env, productID, dstLoc, qty); err != nil {
+				return nil, fmt.Errorf("stock: update dest quant for move %d: %w", id, err)
+			}
+		}
+		return true, nil
+	})
 }
 
 // initStockMoveLine registers stock.move.line — detailed operations per lot/package.
@@ -454,6 +503,25 @@ func initStockQuant() {
 		orm.Datetime("removal_date", orm.FieldOpts{String: "Removal Date"}),
 	)
 
+	// _update_available_quantity: Adjust available quantity for a product at a location.
+	// Mirrors: odoo/addons/stock/models/stock_quant.py StockQuant._update_available_quantity()
+	m.RegisterMethod("_update_available_quantity", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
+		if len(args) < 3 {
+			return nil, fmt.Errorf("stock.quant._update_available_quantity requires product_id, location_id, quantity")
+		}
+		productID, _ := args[0].(int64)
+		locationID, _ := args[1].(int64)
+		quantity, _ := args[2].(float64)
+		if productID == 0 || locationID == 0 {
+			return nil, fmt.Errorf("stock.quant._update_available_quantity: invalid product_id or location_id")
+		}
+		env := rs.Env()
+		if err := updateQuant(env, productID, locationID, quantity); err != nil {
+			return nil, fmt.Errorf("stock.quant._update_available_quantity: %w", err)
+		}
+		return true, nil
+	})
+
 	// stock.quant.package — physical packages / containers
 	orm.NewModel("stock.quant.package", orm.ModelOpts{
 		Description: "Packages",