feat: add Jira ticket creation modal

Release notes: create Jira tickets from the header, targeting the project and epic found in JQL, with title, dates, and assignee.

public/js/script.js

@@ -408,6 +408,102 @@ function enableUpdateBtn(ticketKey) {
     if (btn) btn.disabled = false;
 }
 
+// --- TICKET CREATION ---
+function getCreateIssueContext() {
+    const jql = document.getElementById('jqlQuery').value.trim();
+    const fallbackProject = document.getElementById('projectKey').value.trim().toUpperCase();
+    const projectMatch = jql.match(/\bproject\s*=\s*["']?([A-Z][A-Z0-9_-]*)["']?/i);
+    const epicMatch = jql.match(/(?:["']?Epic Link["']?|\bparent|cf\[\d+\])\s*=\s*["']?([A-Z][A-Z0-9_-]*-\d+)["']?/i);
+    const configuredFields = parseCustomFields(document.getElementById('customFields').value.trim());
+    const dateField = configuredFields.find(field => /date|go live|production/i.test(field.label)) || configuredFields[0] || null;
+
+    return {
+        jql,
+        projectKey: (projectMatch?.[1] || fallbackProject).toUpperCase(),
+        epicKey: epicMatch?.[1]?.toUpperCase() || '',
+        dateField
+    };
+}
+
+function openCreateIssueModal() {
+    const username = document.getElementById('username').value.trim();
+    const apiToken = document.getElementById('apiToken').value.trim();
+    const context = getCreateIssueContext();
+
+    if (!username || !apiToken) {
+        showToast('Enter your Jira credentials first.', 'error');
+        return;
+    }
+    if (!context.projectKey) {
+        showToast('Add a project to the JQL query first.', 'error');
+        return;
+    }
+
+    saveSettings();
+    document.getElementById('createIssueTarget').textContent = context.epicKey
+        ? `Project ${context.projectKey} · Epic ${context.epicKey}`
+        : `Project ${context.projectKey}`;
+    document.getElementById('createIssueSummary').value = '';
+    document.getElementById('createIssueDueDate').value = '';
+    document.getElementById('createIssueGoLiveDate').value = '';
+    document.getElementById('createIssueAssignee').value = '';
+
+    const customDateInput = document.getElementById('createIssueGoLiveDate');
+    document.getElementById('createIssueGoLiveLabel').textContent = context.dateField?.label || 'Custom Date';
+    customDateInput.disabled = !context.dateField;
+    customDateInput.title = context.dateField ? '' : 'Configure a custom date field in Extraction Settings';
+
+    document.getElementById('createIssueModal').classList.add('visible');
+    document.getElementById('createIssueSummary').focus();
+}
+
+function closeCreateIssueModal() {
+    document.getElementById('createIssueModal').classList.remove('visible');
+}
+
+async function createIssue() {
+    const summary = document.getElementById('createIssueSummary').value.trim();
+    if (!summary) {
+        showToast('The ticket title is required.', 'error');
+        document.getElementById('createIssueSummary').focus();
+        return;
+    }
+
+    const context = getCreateIssueContext();
+    const btn = document.getElementById('createIssueSaveBtn');
+    const originalContent = btn.innerHTML;
+    btn.innerHTML = '<span class="spinner"></span> Creating...';
+    btn.disabled = true;
+
+    try {
+        const response = await fetch(`${API_BASE}/api/issues`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({
+                username: document.getElementById('username').value.trim(),
+                apiToken: document.getElementById('apiToken').value.trim(),
+                projectKey: context.projectKey,
+                jql: context.jql,
+                summary,
+                dueDate: document.getElementById('createIssueDueDate').value || null,
+                goLiveDate: document.getElementById('createIssueGoLiveDate').value || null,
+                goLiveFieldId: context.dateField?.id || null,
+                assignee: document.getElementById('createIssueAssignee').value.trim() || null
+            })
+        });
+        const data = await response.json();
+        if (!response.ok) throw new Error(data.error || `HTTP Error ${response.status}`);
+
+        closeCreateIssueModal();
+        showToast(`Ticket ${data.key} created!`, 'success');
+    } catch (error) {
+        showToast(error.message, 'error');
+    } finally {
+        btn.innerHTML = originalContent;
+        btn.disabled = false;
+    }
+}
+
 function handleUpdateClick(ticketKey, goLiveColName) {
     const dueInput = document.getElementById(`due-${ticketKey}`);
     const dueDate = dueInput && dueInput.value ? dueInput.value : null;
@@ -964,7 +1060,10 @@ function clearResults() { allTickets=[]; filteredTickets=[]; document.getElement
 
 document.addEventListener('keydown', e => {
     if((e.ctrlKey||e.metaKey)&&e.key==='Enter'){e.preventDefault();startExtraction()}
-    if(e.key === 'Escape') closeDateEditModal();
+    if(e.key === 'Escape') {
+        closeDateEditModal();
+        closeCreateIssueModal();
+    }
 });
 document.addEventListener('DOMContentLoaded', () => {
     initTheme();
@@ -975,5 +1074,10 @@ document.addEventListener('DOMContentLoaded', () => {
         modalOverlay.addEventListener('click', e => { if (e.target === modalOverlay) closeDateEditModal(); });
     }
 
+    const createIssueOverlay = document.getElementById('createIssueModal');
+    if (createIssueOverlay) {
+        createIssueOverlay.addEventListener('click', e => { if (e.target === createIssueOverlay) closeCreateIssueModal(); });
+    }
+
     console.log("Settings loaded from local storage.");
 });