fix(service-automation): get_record form descriptor's limit declares minimum 1

The contract refuses a get_record limit below 1 at every flow save door;
the designer form descriptor offered 0 and negatives. Declare minimum: 1
and pin the descriptor's floor against the contract's refusal boundary.

Claude-Session: https://claude.ai/code/session_016g7nYP9wdNx1GDa5XDr7Uy
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

.changeset/25361-get-record-limit-form-minimum.md

@@ -0,0 +1,10 @@
+---
+'@objectstack/service-automation': patch
+---
+
+fix: the `get_record` designer form no longer offers a `limit` below 1
+
+Clause-②: no
+Metadata-protocol: none
+
+The `get_record` node's `limit` is a positive integer, and every flow save door refuses `0`, a negative or a fraction. The executor's form descriptor still declared `limit` as a bare integer, so the designer form offered values the save always refused. The descriptor's `limit` now declares `minimum: 1`, the same floor as the contract. Nothing a flow can store changes; only the form stops offering what the save refuses.

packages/services/service-automation/src/builtin/builtin-node-form-zod-ledger.test.ts

@@ -136,6 +136,24 @@ describe('CRUD / screen / map form ↔ Zod reconciliation (#4045)', () => {
     ).toEqual([]);
   });
 
+  it('get_record.limit: the form\'s minimum is the contract\'s refusal boundary', () => {
+    // The contract refuses a `limit` below 1 at every save door; a form whose
+    // floor sits lower offers values the save always refuses. Pin both sides
+    // at the boundary the descriptor declares, so neither moves alone.
+    const limit = formSchema('get_record').properties?.limit as
+      | { type?: string; minimum?: number }
+      | undefined;
+    expect(limit?.type).toBe('integer');
+    expect(limit?.minimum).toBe(1);
+
+    const parse = (value: number) =>
+      (GetRecordConfigSchema as unknown as { safeParse(v: unknown): { success: boolean } })
+        .safeParse({ objectName: 'account', limit: value }).success;
+    expect(parse(limit!.minimum!), 'the contract accepts the form\'s minimum').toBe(true);
+    expect(parse(limit!.minimum! - 1), 'the contract refuses one below the form\'s minimum').toBe(false);
+    expect(parse(0), 'the contract refuses 0').toBe(false);
+  });
+
   describe('assignment: pinned as un-reconcilable, with the reason on record', () => {
     // `assignment` deliberately has NO entry in builtin-node-config.zod.ts: with
     // no `assignments` wrapper, the TOP-LEVEL config keys ARE the author's

packages/services/service-automation/src/builtin/crud-nodes.ts

@@ -477,7 +477,10 @@ export function registerCrudNodes(engine: AutomationEngine, ctx: PluginContext):
                             type: 'array', items: { type: 'string' }, title: 'Fields',
                             description: 'Field projection — only these fields are read (default: all).',
                         },
-                        limit: { type: 'integer', title: 'Limit' },
+                        // `minimum: 1` mirrors the contract: `GetRecordConfigSchema.limit`
+                        // is a positive integer, refused below 1 at every flow save
+                        // door, so the form never offers a value the save refuses.
+                        limit: { type: 'integer', minimum: 1, title: 'Limit' },
                         outputVariable: { type: 'string', title: 'Output variable' },
                     },
                     required: ['objectName'],