Release 0.2.2 — browse submitted changelists, People & Roles, AI summaries

- History: GitHub-style split view of submitted changelists; preview file
  contents at their exact revision (code/image/3D/uasset) via `p4 print`
- People & Roles modal: who works on the depot, activity indicators,
  group/role assignment (p4 users / groups / group -i)
- AI commit summaries via OpenRouter (sparkle button); key/model in Settings
- Commit-message draft persists until Submit (not cleared on local commit)
- Resizable History file-list column (pointer-capture drag)
- Fix UI-scale leaving a gap at the bottom (compensate zoom in .win height)
- Author avatars on history rows; bump version to 0.2.2

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/ai.ts

@@ -0,0 +1,74 @@
+// OpenRouter-powered commit summary + small avatar helpers.
+import { p4, OpenedFile, statusOf } from "./p4";
+
+const MODEL_KEY = "exd-ai-model";
+const KEY_KEY = "exd-ai-key";
+// cheap + reliable default; change to a "…:free" model in Settings to pay nothing
+export const DEFAULT_MODEL = "openai/gpt-4o-mini";
+
+export function getModel(): string { try { return localStorage.getItem(MODEL_KEY) || DEFAULT_MODEL; } catch { return DEFAULT_MODEL; } }
+export function setModel(m: string) { try { localStorage.setItem(MODEL_KEY, m.trim() || DEFAULT_MODEL); } catch {} }
+export function getKeyLocal(): string { try { return localStorage.getItem(KEY_KEY) || ""; } catch { return ""; } }
+export function setKeyLocal(k: string) { try { localStorage.setItem(KEY_KEY, k.trim()); } catch {} }
+
+// key resolution: localStorage first, else the app-config file (git-ignored)
+export async function resolveKey(): Promise<string> {
+  const local = getKeyLocal();
+  if (local) return local;
+  try { return (await p4.readAiKey()) || ""; } catch { return ""; }
+}
+
+// generate a commit summary + description from the changed files
+export async function aiSummary(files: OpenedFile[]): Promise<{ summary: string; description: string }> {
+  const key = await resolveKey();
+  if (!key) throw new Error("No OpenRouter API key — set it in Settings");
+  const list = files.slice(0, 200).map((f) => `${statusOf(f.action).ch} ${f.depotFile || ""}`).join("\n");
+  const res = await fetch("https://openrouter.ai/api/v1/chat/completions", {
+    method: "POST",
+    headers: { Authorization: `Bearer ${key}`, "Content-Type": "application/json", "X-Title": "Exbyte Depot" },
+    body: JSON.stringify({
+      model: getModel(),
+      max_tokens: 300,
+      temperature: 0.3,
+      messages: [
+        { role: "system", content: "You write concise commit messages for a Perforce/Unreal project. Given a list of changed files (+ added, ± edited, − deleted), reply with ONE short imperative summary line (under 72 chars, no trailing period), then a blank line, then an optional 1-3 line description. Plain text only — no markdown, no code fences, no quotes." },
+        { role: "user", content: `Changed files:\n${list}` },
+      ],
+    }),
+  });
+  if (!res.ok) {
+    const txt = await res.text().catch(() => "");
+    throw new Error(`OpenRouter ${res.status}: ${txt.slice(0, 180)}`);
+  }
+  const data = await res.json();
+  const content: string = (data?.choices?.[0]?.message?.content || "").trim();
+  if (!content) throw new Error("Empty AI response");
+  const lines = content.split("\n");
+  const summary = (lines[0] || "").replace(/^["'`*]+|["'`*]+$/g, "").trim();
+  const description = lines.slice(1).join("\n").trim();
+  return { summary, description };
+}
+
+// --- avatar helpers ---
+export function initials(name: string, user: string): string {
+  const n = (name || "").trim();
+  if (n) {
+    const p = n.split(/\s+/);
+    return (p[0][0] + (p[1]?.[0] || "")).toUpperCase();
+  }
+  return (user || "?").slice(0, 2).toUpperCase();
+}
+export function avatarColor(seed: string): string {
+  let h = 0;
+  for (let i = 0; i < seed.length; i++) h = (h * 31 + seed.charCodeAt(i)) >>> 0;
+  return `hsl(${h % 360} 52% 52%)`;
+}
+// activity level from a unix-epoch last-access string
+export function activity(access?: string): "active" | "recent" | "idle" {
+  const n = Number(access || 0) * 1000;
+  if (!n) return "idle";
+  const ago = Date.now() - n;
+  if (ago < 60 * 60 * 1000) return "active";        // < 1h
+  if (ago < 24 * 60 * 60 * 1000) return "recent";   // < 1d
+  return "idle";
+}