feat(fusion_accounting_followup): 6 JSON-RPC endpoints for OWL widget

Adds Task 15 controller layer:
- /fusion/followup/list_overdue
- /fusion/followup/get_partner_detail
- /fusion/followup/generate_text
- /fusion/followup/send
- /fusion/followup/pause
- /fusion/followup/reset

All endpoints use V19 type='jsonrpc' and route through
fusion.followup.engine. 6 HttpCase tests added (69 total).

Made-with: Cursor

fusion_accounting_followup/tests/__init__.py

@@ -10,3 +10,4 @@ from . import test_res_partner_inherit
 from . import test_account_move_line_inherit
 from . import test_fusion_followup_engine
 from . import test_engine_integration
+from . import test_followup_controller

fusion_accounting_followup/tests/test_followup_controller.py

@@ -0,0 +1,80 @@
+"""HttpCase tests for the 6 follow-up JSON-RPC endpoints."""
+
+import json
+from datetime import date, timedelta
+
+from odoo.tests import tagged
+from odoo.tests.common import HttpCase, new_test_user
+
+
+@tagged('post_install', '-at_install')
+class TestFollowupController(HttpCase):
+
+    def setUp(self):
+        super().setUp()
+        self.user = new_test_user(
+            self.env, login='fu_test_user',
+            groups='base.group_user,base.group_partner_manager,'
+                   'account.group_account_invoice',
+        )
+
+    def _jsonrpc(self, endpoint, params):
+        self.authenticate('fu_test_user', 'fu_test_user')
+        url = f'/fusion/followup/{endpoint}'
+        body = {'jsonrpc': '2.0', 'method': 'call', 'params': params, 'id': 1}
+        response = self.url_open(
+            url, data=json.dumps(body),
+            headers={'Content-Type': 'application/json'},
+        )
+        self.assertEqual(
+            response.status_code, 200,
+            f"{endpoint} returned {response.status_code}: {response.text[:300]}",
+        )
+        result = response.json()
+        if 'error' in result:
+            self.fail(f"{endpoint} errored: {result['error']}")
+        return result.get('result', {})
+
+    def test_list_overdue_returns_dict(self):
+        result = self._jsonrpc('list_overdue', {'company_id': self.env.company.id})
+        self.assertIn('partners', result)
+        self.assertIn('total', result)
+
+    def test_get_partner_detail(self):
+        partner = self.env['res.partner'].create({
+            'name': 'Ctrl Test Partner', 'email': 'ctrl@test.local',
+        })
+        result = self._jsonrpc('get_partner_detail', {'partner_id': partner.id})
+        self.assertEqual(result['partner']['id'], partner.id)
+        self.assertIn('overdue', result)
+        self.assertIn('history', result)
+
+    def test_pause_sets_paused_until(self):
+        partner = self.env['res.partner'].create({'name': 'Pause Test'})
+        future = (date.today() + timedelta(days=20)).isoformat()
+        result = self._jsonrpc('pause', {
+            'partner_id': partner.id, 'until_date': future,
+        })
+        self.assertEqual(result['paused_until'], future)
+
+    def test_reset_clears_status(self):
+        partner = self.env['res.partner'].create({
+            'name': 'Reset Test',
+            'fusion_followup_status': 'paused',
+        })
+        result = self._jsonrpc('reset', {'partner_id': partner.id})
+        self.assertEqual(result['status'], 'reset')
+
+    def test_send_no_overdue_returns_no_action(self):
+        partner = self.env['res.partner'].create({
+            'name': 'No Overdue', 'email': 'no@test.local',
+        })
+        result = self._jsonrpc('send', {
+            'partner_id': partner.id, 'force': True,
+        })
+        self.assertIn(result.get('status'), ('no_action', 'no_overdue'))
+
+    def test_generate_text_no_level_returns_no_level(self):
+        partner = self.env['res.partner'].create({'name': 'NoLevel Test'})
+        result = self._jsonrpc('generate_text', {'partner_id': partner.id})
+        self.assertIn(result.get('status'), ('no_level', 'ok'))