feat(shared-ai): SYSTEM_BOOTSTRAP system source — fallback inserts now stamp origin='system'

The race-window `getOrCreateLocalDoc()` fallback in userContextStore +
kontextStore stays (without it, a write that lands between "endpoint
provisioned the singleton in mana_sync" and "first pull landed it in
IndexedDB" would hit `update(missing-id, diff)` — a Dexie no-op that
silently swallows the user's edit). But it was semantically lying: the
insert stamped `origin='user'` even though the row is logically a
client-side replica of the server-side bootstrap.

This commit adds `SYSTEM_BOOTSTRAP = 'system:bootstrap'` to
`@mana/shared-ai` and wraps the two fallback inserts in
`runAsAsync(makeSystemActor(SYSTEM_BOOTSTRAP), ...)`. The Dexie hook
now stamps `origin: 'system'` on the empty-row insert — structurally
identical to the row mana-auth's bootstrap-singletons.ts writes. When
the server's pull arrives later both sides carry the same origin and
the conflict-gate stays quiet. The user's subsequent writes still
stamp `origin: 'user'` on the changed fields.

Plan: docs/plans/sync-field-meta-overhaul.md (F4-fu Fallback-Origin row).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/mana/apps/web/src/lib/data/DATA_LAYER_AUDIT.md

@@ -207,6 +207,7 @@ Sieben Phasen, die vier strukturelle Bugs in der Conflict-Detection abgeräumt h
 - **F7** (`2a8e8ff98`) `repair-silent-twin.ts` + `legacy-avatar.ts` Migrationen ersatzlos gelöscht — pre-live, keine Live-Daten brauchen sie. Orphan-localStorage-Flags-Sweep im Boot (`migrations-cleanup.ts`, `119cd2cf8`) räumt die zugehörigen Flags auf.
 - **F3-fu (v55 cleanup)** (_pending_) Dexie v55 row-rewrite: löscht den Orphan-`updatedAt`-Wert aus jedem Row in `Object.keys(TABLE_TO_APP)`. v53 hatte ihn bewusst stehengelassen (Comment "next-version upgrade can drop it"); nach F3+F5 liest niemand mehr `row.updatedAt`, also pure waste. Idempotent — rows ohne das Feld sind ein no-op.
 - **F4-robust (Endpoint)** (_pending_) Bootstrap-Funktionen idempotent (existence-check) + expliziter Endpoint `POST /api/v1/me/bootstrap-singletons`. Webapp callt ihn auf Boot vor `createUnifiedSync`. Signup-Hooks bleiben als happy-path; Endpoint ist Reconciliation belt-and-suspenders, sodass eine transient mana_sync-Outage beim Signup nicht den User mit `getOrCreateLocalDoc()`-Race auf erstem Write strandet.
+- **F4-fu (Fallback-Origin)** (_pending_) `getOrCreateLocalDoc()` in userContextStore + kontextStore in `runAsAsync(SYSTEM_BOOTSTRAP)` gewrappt — Insert stempelt jetzt `origin='system'` statt `origin='user'`, strukturell äquivalent zum Server-Bootstrap. Neue Konstante `SYSTEM_BOOTSTRAP` in `@mana/shared-ai`. Race-Window-Fallback bleibt notwendig (sonst Silent-Loss via `update(missing-id, diff)`), aber ist jetzt nicht mehr semantisch fragwürdig.
 
 Die vier Bug-Wurzeln (siehe ursprüngliche Diagnose 2026-04-26):
 

apps/mana/apps/web/src/lib/modules/kontext/stores/kontext.svelte.ts

@@ -20,19 +20,25 @@
 import { kontextDocTable } from '../collections';
 import { encryptRecord, decryptRecords } from '$lib/data/crypto';
 import { scopedTable } from '$lib/data/scope/scoped-db';
+import { makeSystemActor, SYSTEM_BOOTSTRAP } from '@mana/shared-ai';
+import { runAsAsync } from '$lib/data/events/actor';
 import type { LocalKontextDoc } from '../types';
 
+const BOOTSTRAP_ACTOR = makeSystemActor(SYSTEM_BOOTSTRAP);
+
 async function findForActiveSpace(): Promise<LocalKontextDoc | undefined> {
 	const rows = await scopedTable<LocalKontextDoc, string>('kontextDoc').toArray();
 	return rows.find((r) => !r.deletedAt);
 }
 
 /**
- * Fallback path for the rare race where a write happens before the
- * server-bootstrap row has reached the client. Materialises the row
- * locally so `setContent` / `appendContent` always have something to
- * update. The server-bootstrapped row will arrive on the next pull and
- * field-LWW collapses any concurrent writes.
+ * Race-window fallback for the narrow window between "server bootstrap
+ * provisioned the row in mana_sync" and "first pull landed it in
+ * IndexedDB". Without this, `setContent` / `appendContent` would hit
+ * `update(missing-id, diff)` — a Dexie no-op that silently swallows the
+ * write. Insert is stamped `origin: 'system'` (via SYSTEM_BOOTSTRAP)
+ * so the server's bootstrap pull won't fight with it. Subsequent
+ * `setContent` writes stamp `origin: 'user'` as usual.
  */
 async function getOrCreateLocalDoc(): Promise<LocalKontextDoc> {
 	const existing = await findForActiveSpace();
@@ -42,7 +48,9 @@ async function getOrCreateLocalDoc(): Promise<LocalKontextDoc> {
 		content: '',
 	};
 	await encryptRecord('kontextDoc', newLocal);
-	await kontextDocTable.add(newLocal);
+	await runAsAsync(BOOTSTRAP_ACTOR, async () => {
+		await kontextDocTable.add(newLocal);
+	});
 	// Reload — the creating-hook stamped spaceId/authorId/actor fields.
 	const created = await kontextDocTable.get(newLocal.id);
 	if (!created) throw new Error('Failed to create kontextDoc');

apps/mana/apps/web/src/lib/modules/profile/stores/user-context.svelte.ts

@@ -6,17 +6,31 @@
  *
  * Singleton bootstrap (F4 of docs/plans/sync-field-meta-overhaul.md):
  * the per-user `userContext` row is created server-side by mana-auth at
- * `/register` time. The first sync pull lands the row before the UI ever
- * tries to read it. The internal `getOrCreateLocalDoc()` helper below is
- * a *fallback* — it inserts an empty doc on a brand-new client whose
- * pull hasn't caught up yet. Any user edits made in that window stamp
- * `origin: 'user'` via the Dexie hook, and the F2 conflict-gate makes
- * sure the server's `origin: 'system'` bootstrap row never overwrites
- * them silently.
+ * `/register` time AND reconciled on every boot via
+ * `POST /api/v1/me/bootstrap-singletons` (Punkt 3 follow-up). The first
+ * sync pull lands the row before the UI ever tries to read it.
+ *
+ * The internal `getOrCreateLocalDoc()` helper below stays as a fallback
+ * for the narrow race window between "endpoint provisioned the row in
+ * mana_sync" and "first pull landed the row in IndexedDB". Without it,
+ * a write that lands inside that window would hit `update(SINGLETON_ID,
+ * diff)` against a missing key — a Dexie no-op that silently swallows
+ * the user's edit. Killing the fallback was on the post-overhaul audit
+ * list (Punkt 4) but kept here because the silent-loss failure mode is
+ * worse than the cosmetic "client also writes the bootstrap row".
+ *
+ * The fallback insert is wrapped in `runAsAsync(makeSystemActor(
+ * SYSTEM_BOOTSTRAP))` so the Dexie hook stamps `origin: 'system'`
+ * (mirroring the server bootstrap), not `origin: 'user'`. When the
+ * server's pull arrives later both rows carry the same origin and the
+ * conflict-gate stays quiet. The user's subsequent writes stamp
+ * `origin: 'user'` for the changed fields as usual.
  */
 
 import { userContextTable } from '../collections';
 import { encryptRecord, decryptRecords } from '$lib/data/crypto';
+import { makeSystemActor, SYSTEM_BOOTSTRAP } from '@mana/shared-ai';
+import { runAsAsync } from '$lib/data/events/actor';
 import {
 	USER_CONTEXT_SINGLETON_ID,
 	emptyUserContext,
@@ -28,16 +42,20 @@ import {
 	type UserContextSocial,
 } from '../types';
 
-/** Internal fallback: write a fresh empty doc if neither the server
- *  bootstrap (F4) nor any prior session has populated the singleton
- *  yet. Mutating store methods call this first so a brand-new client
- *  that hasn't completed its first pull can still accept edits. */
+const BOOTSTRAP_ACTOR = makeSystemActor(SYSTEM_BOOTSTRAP);
+
+/** Race-window fallback: write a fresh empty doc if neither the server
+ *  bootstrap (F4 + Punkt 3 endpoint) nor any prior session has landed
+ *  the singleton yet. The insert is stamped `origin: 'system'` so the
+ *  server's eventual bootstrap pull won't fight with it. */
 async function getOrCreateLocalDoc(): Promise<void> {
 	const existing = await userContextTable.get(USER_CONTEXT_SINGLETON_ID);
 	if (existing) return;
 	const doc = emptyUserContext() as LocalUserContext;
 	await encryptRecord('userContext', doc);
-	await userContextTable.add(doc);
+	await runAsAsync(BOOTSTRAP_ACTOR, async () => {
+		await userContextTable.add(doc);
+	});
 }
 
 async function readDecrypted(): Promise<LocalUserContext> {

docs/plans/sync-field-meta-overhaul.md

@@ -154,7 +154,8 @@ _Wird befüllt während der Ausführung._
 | F7 | `2a8e8ff98` | `repair-silent-twin.ts` + `legacy-avatar.ts` Migrationen ersatzlos gelöscht. Beide existierten nur um die Symptome eines fixed-in-M2.5 Bugs zu cleanen, der pre-live keine echten Daten produziert hat. Mit F2's `origin='migration'` wrapper + F3's drop von synced `updatedAt` würden ihre writes auch nicht mehr als Conflicts auftauchen — sie waren strukturell überflüssig. Caller in MeImagesView + wardrobe/ListView entfernt; leere `migration/` Directory gelöscht. |
 | F4-fu (kontextDoc) | `3df739190` | F4-Symmetrie: `bootstrapSpaceSingletons(spaceId, ownerUserId, syncSql)` in `bootstrap-singletons.ts`, schreibt einen leeren `kontext/kontextDoc` row pro Space-Erstellung in `mana_sync.sync_changes` mit `client_id='system:bootstrap'`, `origin='system'`. Zwei Aufruf-Sites: `databaseHooks.user.create.after` (Personal-Space; nur wenn `createPersonalSpaceFor` `created: true` zurückgibt) + `organizationHooks.afterCreateOrganization` (alle non-personal Spaces). `createBetterAuth` kriegt `syncDatabaseUrl` als zweites Argument; lazy module-scoped postgres-pool. Webapp `kontextStore.ensureDoc()` zu privat `getOrCreateLocalDoc()` umbenannt — Public-API ist nur noch `setContent` + `appendContent`. Kontext content bleibt encrypted at rest auf dem Client (`kontextDoc.content`); der Server-Bootstrap schreibt `''` plaintext, was im Client-`decryptRecord` toleriert wird (non-envelope strings werden durchgereicht). |
 | F3-fu (v55 cleanup) | `53fecbf4a` | Dexie v55 löscht den Orphan-`updatedAt`-Wert aus jedem Row in `Object.keys(TABLE_TO_APP)`. v53 hatte ihn bewusst stehengelassen (Comment "next-version upgrade can drop it"); nach F3 liest niemand mehr `row.updatedAt` — `deriveUpdatedAt(local)` aus `__fieldMeta` ist die SSOT. Idempotent (delete missing field = no-op), best-effort (try/catch pro Tabelle für unbekannte/missing stores). |
-| F4-robust (Endpoint) | _pending_ | F4-Bootstrap robuster gemacht via expliziten Endpoint `POST /api/v1/me/bootstrap-singletons` in mana-auth. Beide Bootstrap-Funktionen (`bootstrapUserSingletons`, `bootstrapSpaceSingletons`) sind jetzt idempotent (existence-check vor INSERT) und geben `boolean` zurück. Endpoint ruft beide auf — userContext für den Caller, kontextDoc für jeden Space, in dem der Caller Member ist. Webapp `(app)/+layout.svelte` callt den Endpoint einmal pro Boot vor `createUnifiedSync`, fire-and-forget am Client. Signup-Hooks (`databaseHooks.user.create.after`, `organizationHooks.afterCreateOrganization`) bleiben als happy-path; Endpoint ist Reconciliation belt-and-suspenders. |
+| F4-robust (Endpoint) | `099cac4a0` | F4-Bootstrap robuster gemacht via expliziten Endpoint `POST /api/v1/me/bootstrap-singletons` in mana-auth. Beide Bootstrap-Funktionen (`bootstrapUserSingletons`, `bootstrapSpaceSingletons`) sind jetzt idempotent (existence-check vor INSERT) und geben `boolean` zurück. Endpoint ruft beide auf — userContext für den Caller, kontextDoc für jeden Space, in dem der Caller Member ist. Webapp `(app)/+layout.svelte` callt den Endpoint einmal pro Boot vor `createUnifiedSync`, fire-and-forget am Client. Signup-Hooks (`databaseHooks.user.create.after`, `organizationHooks.afterCreateOrganization`) bleiben als happy-path; Endpoint ist Reconciliation belt-and-suspenders. |
+| F4-fu (Fallback-Origin) | _pending_ | Punkt 4 abgeschwächt: `getOrCreateLocalDoc()` in userContextStore + kontextStore bleibt (Race zwischen "Endpoint provisioniert in mana_sync" und "First-Pull landet in IndexedDB" lässt sich nicht eliminieren — ohne Fallback würden Writes im Race-Window silently in `update(missing-id, diff)` no-ops verloren gehen). Aber: Fallback-Insert ist jetzt in `runAsAsync(makeSystemActor(SYSTEM_BOOTSTRAP), ...)` gewrappt. Neue Konstante `SYSTEM_BOOTSTRAP = 'system:bootstrap'` in `@mana/shared-ai`, mappt via `originFromActor` auf `origin='system'` — strukturell äquivalent zum Server-Bootstrap. Wenn der Server-Pull später ankommt, beide Rows tragen `origin: 'system'`, conflict-gate bleibt ruhig. User-Writes danach stempeln `origin: 'user'` wie immer. |
 
 ## F1 — Implementation Notes
 

packages/shared-ai/src/actor.ts

@@ -33,13 +33,23 @@ export const SYSTEM_RULE = 'system:rule';
 export const SYSTEM_MIGRATION = 'system:migration';
 export const SYSTEM_STREAM = 'system:stream';
 export const SYSTEM_MISSION_RUNNER = 'system:mission-runner';
+/**
+ * Client-side singleton bootstrap. Stamped on the rare race-window
+ * `getOrCreateLocalDoc()` insert in `userContextStore` / `kontextStore`
+ * — a structural twin of mana-auth's server-side bootstrap (which uses
+ * the `'system:bootstrap'` principalId on the wire). Maps to
+ * `origin='system'` via `originFromActor`, so the conflict-gate exempts
+ * it from the user-write codepath.
+ */
+export const SYSTEM_BOOTSTRAP = 'system:bootstrap';
 
 export type SystemSource =
 	| typeof SYSTEM_PROJECTION
 	| typeof SYSTEM_RULE
 	| typeof SYSTEM_MIGRATION
 	| typeof SYSTEM_STREAM
-	| typeof SYSTEM_MISSION_RUNNER;
+	| typeof SYSTEM_MISSION_RUNNER
+	| typeof SYSTEM_BOOTSTRAP;
 
 /** Legacy sentinels for records that pre-date the identity-aware actor
  *  shape. Read-path normalization maps missing fields to these. */
@@ -141,6 +151,8 @@ function defaultSystemDisplayName(source: SystemSource): string {
 			return 'Event-Stream';
 		case SYSTEM_MISSION_RUNNER:
 			return 'Mission-Runner';
+		case SYSTEM_BOOTSTRAP:
+			return 'Bootstrap';
 	}
 }
 

packages/shared-ai/src/index.ts

@@ -22,6 +22,7 @@ export {
 	SYSTEM_MIGRATION,
 	SYSTEM_STREAM,
 	SYSTEM_MISSION_RUNNER,
+	SYSTEM_BOOTSTRAP,
 	LEGACY_USER_PRINCIPAL,
 	LEGACY_AI_PRINCIPAL,
 	LEGACY_SYSTEM_PRINCIPAL,