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.go

@@ -109,6 +109,22 @@ func initHREmployee() {
 	})
 }
 
+// initHrEmployeeExtensions adds skill, resume, attendance and leave fields
+// to hr.employee after the related models have been registered.
+func initHrEmployeeExtensions() {
+	emp := orm.ExtendModel("hr.employee")
+	emp.AddFields(
+		orm.One2many("skill_ids", "hr.employee.skill", "employee_id", orm.FieldOpts{String: "Skills"}),
+		orm.One2many("resume_line_ids", "hr.resume.line", "employee_id", orm.FieldOpts{String: "Resume"}),
+		orm.One2many("attendance_ids", "hr.attendance", "employee_id", orm.FieldOpts{String: "Attendances"}),
+		orm.Float("leaves_count", orm.FieldOpts{String: "Time Off", Compute: "_compute_leaves"}),
+		orm.Selection("attendance_state", []orm.SelectionItem{
+			{Value: "checked_out", Label: "Checked Out"},
+			{Value: "checked_in", Label: "Checked In"},
+		}, orm.FieldOpts{String: "Attendance", Compute: "_compute_attendance_state"}),
+	)
+}
+
 // initHRDepartment registers the hr.department model.
 // Mirrors: odoo/addons/hr/models/hr_department.py
 func initHRDepartment() {