feat(fusion_claims): add OWL countdown widget for posting deadline

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_claims/__manifest__.py

@@ -178,6 +178,9 @@
             # Dashboard: tokens MUST load before dashboard layout
             'fusion_claims/static/src/scss/_fc_dashboard_tokens.scss',
             'fusion_claims/static/src/scss/fc_dashboard.scss',
+            # Dashboard OWL countdown widget
+            'fusion_claims/static/src/js/fc_posting_countdown.js',
+            'fusion_claims/static/src/xml/fc_posting_countdown.xml',
         ],
         'web.assets_web_dark': [
             # Dark bundle recompiles the same SCSS with the dark

fusion_claims/static/src/js/fc_posting_countdown.js

@@ -0,0 +1,63 @@
+/** @odoo-module **/
+// Fusion Claims — Posting Period Countdown
+// Reads the submission_deadline_dt field, computes "Nd Xh to cutoff" client-side,
+// re-renders every 60 seconds, swaps colour class as the deadline approaches.
+// Copyright 2026 Nexa Systems Inc.
+// License OPL-1
+
+import { Component, useState, onWillDestroy } from "@odoo/owl";
+import { registry } from "@web/core/registry";
+import { standardFieldProps } from "@web/views/fields/standard_field_props";
+
+class FcPostingCountdown extends Component {
+    static template = "fusion_claims.PostingCountdown";
+    static props = { ...standardFieldProps };
+
+    setup() {
+        this.state = useState({ text: "", level: "info" });
+        this._render();
+        this._timer = setInterval(() => this._render(), 60_000);
+        onWillDestroy(() => {
+            if (this._timer) {
+                clearInterval(this._timer);
+                this._timer = null;
+            }
+        });
+    }
+
+    _render() {
+        const deadline = this.props.record.data[this.props.name];
+        if (!deadline) {
+            this.state.text = "";
+            this.state.level = "muted";
+            return;
+        }
+        // Odoo provides a luxon DateTime for Datetime fields
+        const now = luxon.DateTime.now();
+        const diff = deadline.diff(now, ["days", "hours", "minutes"]).toObject();
+
+        if (diff.days < 0 || (diff.days === 0 && diff.hours < 0)) {
+            this.state.text = "Cutoff passed";
+            this.state.level = "muted";
+            return;
+        }
+
+        const days = Math.floor(diff.days);
+        const hours = Math.floor(diff.hours);
+
+        if (days < 1) {
+            this.state.text = `${hours}h to cutoff`;
+            this.state.level = "danger";
+        } else if (days < 3) {
+            this.state.text = `${days}d ${hours}h to cutoff`;
+            this.state.level = "warning";
+        } else {
+            this.state.text = `${days} days to cutoff`;
+            this.state.level = "info";
+        }
+    }
+}
+
+registry.category("fields").add("fc_posting_countdown", {
+    component: FcPostingCountdown,
+});

fusion_claims/static/src/xml/fc_posting_countdown.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates xml:space="preserve">
+    <t t-name="fusion_claims.PostingCountdown">
+        <span t-attf-class="o_fc_countdown o_fc_countdown--{{state.level}}"
+              t-esc="state.text"/>
+    </t>
+</templates>