feat(integrations): add issue creation and Azure work item support

Add creation flow for integration issues and Azure work items.
Expose Tauri commands to list Azure projects and types.
Also add a command to create integration issues and return the created item.
Preserve the target repository when provider responses omit it and return
the created issue information to the UI.

- Implement Azure-specific URL and payload handling and creation logic
- Add a Svelte CreateIssueDialog and integrate it into IssueCenter
- Add tests to validate creation requests and created-issue parsing

src/lib/components/IssueCenter.svelte

@@ -6,8 +6,9 @@
   import { onMount, onDestroy, tick } from "svelte";
   import { fly } from "svelte/transition";
   import { cubicOut } from "svelte/easing";
-  import { ChevronRight, CircleDot, FolderGit2, ExternalLink, RefreshCw, Search, Settings2, X, XCircle } from "@lucide/svelte";
+  import { ChevronRight, CircleDot, Plus, FolderGit2, ExternalLink, RefreshCw, Search, Settings2, X, XCircle } from "@lucide/svelte";
   import "../issueWorkspace.css";
+  import CreateIssueDialog from "./CreateIssueDialog.svelte";
   import IssueComments from "./IssueComments.svelte";
   import IssueLabels from "./IssueLabels.svelte";
   import IssueAssignees from "./IssueAssignees.svelte";
@@ -17,13 +18,16 @@
   import { readWorkspacePreferences, writeWorkspacePreferences } from "../workspacePreferences";
   import { listIntegrationIssues, closeIntegrationIssue, listAzureIssueStates, setAzureIssueState, openInBrowser } from "../git";
   import { configuredIntegrationSources, integrationCredentialKey } from "../integrations";
-  import type { GitIntegrationSettings, IntegrationIssue, StoredCredential } from "../types";
+  import type { GitIntegrationSettings, GitIntegrationSource, IntegrationIssue, StoredCredential } from "../types";
 
   export let language: "de" | "en" = "en";
   export let integrations: GitIntegrationSettings;
   export let loadCredential: (key: string) => Promise<StoredCredential | null>;
   export let onOpenSettings: () => void;
 
+  let createSource: GitIntegrationSource | null = null;
+  let createKey = "";
+  let createRepository = "";
   let viewMode: "list" | "board" = "list";
   let sourceId = "";
   let issues: IntegrationIssue[] = [];
@@ -216,6 +220,25 @@
     } finally { closingId = ""; }
   }
 
+  function issueCreated(issue: IntegrationIssue) {
+    const key = createKey;
+    const saved = cache.get(key);
+    const next = [issue, ...(saved?.issues ?? []).filter(item => item.id !== issue.id)];
+    cache.set(key, { issues: next, nextCursor: saved?.nextCursor ?? null });
+    createSource = null;
+    if (sourceKey !== key) return;
+    generation++; // Ignore any list response started before creation.
+    loading = false;
+    issues = next;
+    viewMode = "list";
+    repositoryFilter = ""; stateFilter = ""; query = "";
+    const collapsed = new Set(collapsedRepositories);
+    collapsed.delete(JSON.stringify([key, issue.repositoryName]));
+    collapsedRepositories = collapsed;
+    selectedId = issue.id;
+    error = ""; actionError = "";
+  }
+
   async function openIssue(url: string) {
     try { await openInBrowser(url); }
     catch (cause) { error = String(cause); }
@@ -249,6 +272,7 @@
             <SelectMenu class="repository-select" value={repositoryFilter} options={repositoryOptions} ariaLabel={de ? "Repository filtern" : "Filter repository"} onChange={value => { repositoryFilter = value; selectedId = ""; }} />
             <SelectMenu class="state-select" value={stateFilter} options={stateOptions} ariaLabel={de ? "Status filtern" : "Filter state"} onChange={value => { stateFilter = value; }} />
             <button class="workspace-button icon-button" disabled={loading} onclick={() => loadIssues()} title={de ? "Aktualisieren" : "Refresh"} aria-label={de ? "Aktualisieren" : "Refresh"}><RefreshCw size={15} /></button>
+            {#if source}<button class="workspace-button issue-create-button" onclick={() => { createKey = sourceKey; createRepository = repositoryFilter; createSource = source; }}><Plus size={14}/>{de ? "Neues Issue" : "New issue"}</button>{/if}
           </div>
           {#if error}<div class="workspace-notice error" role="alert">{error}<p>{de ? "Bitte Token und Leserechte für Issues bzw. Azure Boards prüfen." : "Check the token and read permissions for issues or Azure Boards."}</p></div>{/if}
           <div class="issue-list">
@@ -317,3 +341,7 @@
     {/if}
   {/if}
 </section>
+
+{#if createSource}
+  <CreateIssueDialog source={createSource} {de} initialRepository={createRepository} {loadCredential} onClose={() => { createSource = null; }} onCreated={issueCreated}/>
+{/if}