Share one crew across the install, keep user memory per user

Bots, workspaces and computers now belong to the install. Users reach
workers only through bot_users (assigned by a super admin or admin) and
workspace_users; the coordinator and main computer are one per install,
and only the super admin sees the coordinator. Conversations are per
user (bot_sessions.user_id), jobs run for the session's user, and live
updates go only to who should see them.

A bot's core memory is now general knowledge shared by every user it
works for; what it learns about a user lives in bot_user_memories.

One-off scripts move existing installs over: move-bot-memory-to-owners
(run first), then share-crew.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/functions/backend/db/bot-sessions/start-bot-session.ts

@@ -4,6 +4,10 @@ import createBotSession from "./create-bot-session";
 import grabActiveBotSession from "./grab-active-bot-session";
 
 type Params = {
+    /**
+     * The user the conversation is with.
+     */
+    user_id: number | string;
     bot_id: number | string;
     workspace_id?: number | string | null;
 };
@@ -14,10 +18,11 @@ type Params = {
  * An active session with no messages yet is kept as it is.
  */
 export default async function startBotSession({
+    user_id,
     bot_id,
     workspace_id,
 }: Params): Promise<BUN_SQLITE_COBBLE_BOT_SESSIONS> {
-    const active = await grabActiveBotSession({ bot_id, workspace_id });
+    const active = await grabActiveBotSession({ user_id, bot_id, workspace_id });
 
     if (active?.id) {
         const has_messages = (
@@ -36,6 +41,7 @@ export default async function startBotSession({
     }
 
     return await createBotSession({
+        user_id,
         bot_id,
         workspace_id,
         previous_session_id: active?.id || null,