feat(fusion_accounting_ai): 5 new financial reports AI tools

Adds financial_reports.py tools module with 5 fusion-engine-routed
tools registered in TOOL_DISPATCH:

- fusion_run_report
- fusion_get_anomalies
- fusion_generate_commentary
- fusion_drill_down_report_line
- fusion_compare_periods

Each tool guards on 'fusion.report.engine' being in the registry and
otherwise returns a structured error so the chat agent can surface a
clear "module not installed" message.

6 new TransactionCase tests (including a TOOL_DISPATCH registration
sanity check).

Made-with: Cursor

fusion_accounting_reports/__manifest__.py

@@ -1,6 +1,6 @@
 {
     'name': 'Fusion Accounting Reports',
-    'version': '19.0.1.0.15',
+    'version': '19.0.1.0.16',
     'category': 'Accounting/Accounting',
     'summary': 'AI-augmented financial reports (P&L, balance sheet, trial balance, GL).',
     'description': """

fusion_accounting_reports/tests/__init__.py

@@ -12,3 +12,4 @@ from . import test_fusion_report_commentary
 from . import test_fusion_report_anomaly
 from . import test_reports_controller
 from . import test_reports_adapter
+from . import test_fusion_report_tools

fusion_accounting_reports/tests/test_fusion_report_tools.py

@@ -0,0 +1,81 @@
+"""Tests for the 5 fusion AI tools registered in TOOL_DISPATCH."""
+
+from odoo.tests.common import TransactionCase, tagged
+
+from odoo.addons.fusion_accounting_ai.services.tools import financial_reports as tools
+
+
+@tagged('post_install', '-at_install')
+class TestFusionReportTools(TransactionCase):
+
+    def test_fusion_run_report_pnl(self):
+        result = tools.fusion_run_report(self.env, {
+            'report_type': 'pnl',
+            'date_from': '2026-01-01',
+            'date_to': '2026-12-31',
+            'company_id': self.env.company.id,
+        })
+        self.assertEqual(result['report_type'], 'pnl')
+        self.assertIn('rows', result)
+        self.assertIn('row_count', result)
+
+    def test_fusion_get_anomalies(self):
+        result = tools.fusion_get_anomalies(self.env, {
+            'report_type': 'pnl',
+            'date_from': '2026-01-01',
+            'date_to': '2026-12-31',
+            'comparison': 'previous_year',
+            'company_id': self.env.company.id,
+        })
+        self.assertIn('anomalies', result)
+        self.assertIn('count', result)
+
+    def test_fusion_generate_commentary(self):
+        result = tools.fusion_generate_commentary(self.env, {
+            'report_type': 'pnl',
+            'date_from': '2026-01-01',
+            'date_to': '2026-12-31',
+            'company_id': self.env.company.id,
+        })
+        self.assertIn('summary', result)
+        self.assertIn('highlights', result)
+        self.assertIn('concerns', result)
+        self.assertIn('next_actions', result)
+
+    def test_fusion_drill_down(self):
+        line = self.env['account.move.line'].search(
+            [('parent_state', '=', 'posted')], limit=1,
+        )
+        if not line:
+            self.skipTest("No posted move lines")
+        result = tools.fusion_drill_down_report_line(self.env, {
+            'account_id': line.account_id.id,
+            'date_from': str(line.date),
+            'date_to': str(line.date),
+            'company_id': line.company_id.id,
+        })
+        self.assertIn('rows', result)
+        self.assertIn('count', result)
+
+    def test_fusion_compare_periods(self):
+        result = tools.fusion_compare_periods(self.env, {
+            'report_type': 'pnl',
+            'date_from': '2026-01-01',
+            'date_to': '2026-12-31',
+            'company_id': self.env.company.id,
+        })
+        self.assertEqual(result['report_type'], 'pnl')
+
+    def test_tools_registered_in_dispatch(self):
+        from odoo.addons.fusion_accounting_ai.services.tools import TOOL_DISPATCH
+        for tool_name in [
+            'fusion_run_report',
+            'fusion_get_anomalies',
+            'fusion_generate_commentary',
+            'fusion_drill_down_report_line',
+            'fusion_compare_periods',
+        ]:
+            self.assertIn(
+                tool_name, TOOL_DISPATCH,
+                f"{tool_name} not registered in TOOL_DISPATCH",
+            )