refactor: consolidate agent/editor plugins under integrations/ (#5491)

Co-authored-by: Claude <noreply@anthropic.com>

integrations/pi-agent-plugin/src/memory/scoping.ts

@@ -0,0 +1,51 @@
+import * as path from "node:path";
+import * as crypto from "node:crypto";
+import { execFileSync } from "node:child_process";
+import type { Scope, ScopeContext } from "../types.ts";
+
+export function detectAppId(cwd: string): string {
+  try {
+    const root = execFileSync("git", ["rev-parse", "--show-toplevel"], {
+      cwd,
+      encoding: "utf-8",
+      timeout: 3000,
+      stdio: ["ignore", "pipe", "ignore"],
+    }).trim();
+    return path.basename(root);
+  } catch {
+    return path.basename(cwd);
+  }
+}
+
+export function detectRunId(sessionFile: string | undefined): string {
+  if (!sessionFile) return "unknown";
+  return crypto.createHash("sha256").update(sessionFile).digest("hex").slice(0, 12);
+}
+
+export function resolveSearchFilters(
+  scope: Scope,
+  ctx: ScopeContext,
+): Record<string, string> {
+  switch (scope) {
+    case "project":
+      return { user_id: ctx.userId, app_id: ctx.appId };
+    case "session":
+      return { user_id: ctx.userId, app_id: ctx.appId, run_id: ctx.runId };
+    case "global":
+      return { user_id: ctx.userId, app_id: "*" };
+  }
+}
+
+export function resolveAddParams(
+  scope: Scope,
+  ctx: ScopeContext,
+): Record<string, string> {
+  switch (scope) {
+    case "project":
+      return { userId: ctx.userId, appId: ctx.appId };
+    case "session":
+      return { userId: ctx.userId, appId: ctx.appId, runId: ctx.runId };
+    case "global":
+      return { userId: ctx.userId };
+  }
+}