diff --git a/fusion_accounting_bank_rec/__manifest__.py b/fusion_accounting_bank_rec/__manifest__.py
index 9b64e374..6ffb2545 100644
--- a/fusion_accounting_bank_rec/__manifest__.py
+++ b/fusion_accounting_bank_rec/__manifest__.py
@@ -1,6 +1,6 @@
 {
     'name': 'Fusion Accounting — Bank Reconciliation',
-    'version': '19.0.1.0.3',
+    'version': '19.0.1.0.4',
     'category': 'Accounting/Accounting',
     'sequence': 28,
     'summary': 'Native V19 bank reconciliation widget with AI confidence scoring + behavioural learning.',
diff --git a/fusion_accounting_bank_rec/models/__init__.py b/fusion_accounting_bank_rec/models/__init__.py
index 89320e0e..9bbbac47 100644
--- a/fusion_accounting_bank_rec/models/__init__.py
+++ b/fusion_accounting_bank_rec/models/__init__.py
@@ -2,3 +2,5 @@ from . import fusion_reconcile_pattern
 from . import fusion_reconcile_precedent
 from . import fusion_reconcile_suggestion
 from . import fusion_bank_rec_widget
+from . import account_bank_statement_line
+from . import account_reconcile_model
diff --git a/fusion_accounting_bank_rec/models/account_bank_statement_line.py b/fusion_accounting_bank_rec/models/account_bank_statement_line.py
new file mode 100644
index 00000000..40ef7af6
--- /dev/null
+++ b/fusion_accounting_bank_rec/models/account_bank_statement_line.py
@@ -0,0 +1,52 @@
+"""Inherit account.bank.statement.line to add Phase 1 widget compute fields.
+
+These fields are NOT stored — they're computed on-the-fly so the OWL widget
+can render confidence badges without round-tripping. Performance OK because
+the widget loads ~50-200 lines per kanban open and each compute is a single
+indexed query into fusion.reconcile.suggestion.
+"""
+
+from odoo import api, fields, models
+
+
+class AccountBankStatementLine(models.Model):
+    _inherit = "account.bank.statement.line"
+
+    # Top suggestion + its band — for the inline AI confidence badge
+    fusion_top_suggestion_id = fields.Many2one(
+        'fusion.reconcile.suggestion',
+        compute='_compute_top_suggestion',
+        store=False,
+        help="Highest-ranked pending AI suggestion for this line")
+    fusion_confidence_band = fields.Selection(
+        [('high', 'High'), ('medium', 'Medium'), ('low', 'Low'), ('none', 'None')],
+        compute='_compute_top_suggestion',
+        store=False,
+        default='none',
+        help="Quick-render colour band for the OWL widget badge")
+
+    # Mirror of Enterprise's bank_statement_attachment_ids surface field.
+    # Defined here so fusion's widget can render attachments without
+    # depending on account_accountant being installed.
+    bank_statement_attachment_ids = fields.One2many(
+        'ir.attachment',
+        compute='_compute_bank_statement_attachment_ids',
+        help="Attachments on the underlying account.move; mirrored for the OWL widget")
+
+    def _compute_top_suggestion(self):
+        Suggestion = self.env['fusion.reconcile.suggestion'].sudo()
+        for line in self:
+            top = Suggestion.search([
+                ('statement_line_id', '=', line.id),
+                ('state', '=', 'pending'),
+                ('rank', '=', 1),
+            ], limit=1)
+            line.fusion_top_suggestion_id = top
+            line.fusion_confidence_band = top.confidence_band if top else 'none'
+
+    @api.depends('move_id', 'move_id.attachment_ids')
+    def _compute_bank_statement_attachment_ids(self):
+        for line in self:
+            line.bank_statement_attachment_ids = (
+                line.move_id.attachment_ids if line.move_id else self.env['ir.attachment']
+            )
diff --git a/fusion_accounting_bank_rec/models/account_reconcile_model.py b/fusion_accounting_bank_rec/models/account_reconcile_model.py
new file mode 100644
index 00000000..ca9dab92
--- /dev/null
+++ b/fusion_accounting_bank_rec/models/account_reconcile_model.py
@@ -0,0 +1,20 @@
+"""Inherit account.reconcile.model to add Phase 1 AI integration hooks.
+
+This is a minimal extension placeholder for now — Phase 1+ phases may
+expand it (e.g., to attach AI confidence rules to reconcile-model
+auto-fires). The shared-field-ownership for `created_automatically`
+already lives in fusion_accounting_core; this file is for fusion_bank_rec
+specific extensions only.
+"""
+
+from odoo import fields, models
+
+
+class AccountReconcileModel(models.Model):
+    _inherit = "account.reconcile.model"
+
+    fusion_ai_confidence_threshold = fields.Float(
+        string="AI confidence threshold",
+        default=0.0,
+        help="If >0.0, fusion AI suggestions matching this rule are auto-applied "
+             "only when their confidence ≥ this threshold. 0.0 = no AI filtering.")