Massive module expansion: Stock, CRM, HR — +2895 LOC

Stock (1193→2867 LOC):
- Valuation layers (FIFO consumption, product valuation history)
- Landed costs (split by equal/qty/cost/weight/volume, validation)
- Stock reports (by product, by location, move history, valuation)
- Forecasting (on_hand + incoming - outgoing per product)
- Batch transfers (confirm/assign/done with picking delegation)
- Barcode interface (scan product/lot/package/location, qty increment)

CRM (233→1113 LOC):
- Sales teams with dashboard KPIs (opportunity count/amount/unassigned)
- Team members with lead capacity + round-robin auto-assignment
- Lead extended: activities, UTM tracking, scoring, address fields
- Lead methods: merge, duplicate, schedule activity, set priority/stage
- Pipeline analysis (stages, win rate, conversion, team/salesperson perf)
- Partner onchange (auto-populate contact from partner)

HR (223→520 LOC):
- Leave management: hr.leave.type, hr.leave, hr.leave.allocation
  with full approval workflow (draft→confirm→validate/refuse)
- Attendance: check in/out with computed worked_hours
- Expenses: hr.expense + hr.expense.sheet with state machine
- Skills/Resume: skill types, employee skills, resume lines
- Employee extensions: skills, attendance, leave count links

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

addons/hr/models/hr_attendance.go

@@ -0,0 +1,30 @@
+package models
+
+import "odoo-go/pkg/orm"
+
+// initHrAttendance registers the hr.attendance model.
+// Mirrors: odoo/addons/hr_attendance/models/hr_attendance.py
+func initHrAttendance() {
+	m := orm.NewModel("hr.attendance", orm.ModelOpts{
+		Description: "Attendance",
+		Order:       "check_in desc",
+	})
+	m.AddFields(
+		orm.Many2one("employee_id", "hr.employee", orm.FieldOpts{String: "Employee", Required: true}),
+		orm.Datetime("check_in", orm.FieldOpts{String: "Check In", Required: true}),
+		orm.Datetime("check_out", orm.FieldOpts{String: "Check Out"}),
+		orm.Float("worked_hours", orm.FieldOpts{String: "Worked Hours", Compute: "_compute_worked_hours", Store: true}),
+		orm.Many2one("company_id", "res.company", orm.FieldOpts{String: "Company"}),
+	)
+
+	m.RegisterCompute("worked_hours", func(rs *orm.Recordset) (orm.Values, error) {
+		env := rs.Env()
+		attID := rs.IDs()[0]
+		var hours float64
+		env.Tx().QueryRow(env.Ctx(),
+			`SELECT COALESCE(EXTRACT(EPOCH FROM (check_out - check_in)) / 3600.0, 0)
+             FROM hr_attendance WHERE id = $1 AND check_out IS NOT NULL`, attID,
+		).Scan(&hours)
+		return orm.Values{"worked_hours": hours}, nil
+	})
+}