source-shopify-native: support multiple Shopify stores

Adds multi-store support allowing a single capture to replicate data
from multiple Shopify stores. Each store uses Access Token
authentication.

Key changes:
- StoreConfig model with per-store credentials (Access Token only)
- Legacy single-store configs auto-migrated to multi-store format
- Collection keys use ["/_meta/store", "/id"] for cross-store uniqueness
- Dict-based state format keyed by store ID
- Per-store HTTP sessions with independent rate limiting
- Parallel store initialization via asyncio.gather
- OAuth temporarily removed; will revisit when Flow/UI supports
  per-store OAuth

Closes: #3508

Author: JustinASmith

source-shopify-native/acmeCo/abandoned_checkouts.schema.yaml

@@ -1,36 +1,39 @@
----
 $defs:
   Meta:
     properties:
       op:
         default: u
-        description: "Operation type (c: Create, u: Update, d: Delete)"
+        description: 'Operation type (c: Create, u: Update, d: Delete)'
         enum:
-          - c
-          - u
-          - d
+        - c
+        - u
+        - d
         title: Op
         type: string
       row_id:
         default: -1
-        description: "Row ID of the Document, counting up from zero, or -1 if not known"
+        description: Row ID of the Document, counting up from zero, or -1 if not known
         title: Row Id
         type: integer
+      store:
+        anyOf:
+        - type: string
+        - type: 'null'
+        default: null
+        description: The Shopify store this document belongs to
+        title: Store
     title: Meta
     type: object
 additionalProperties: true
 properties:
   _meta:
-    $ref: "#/$defs/Meta"
-    default:
-      op: u
-      row_id: -1
+    $ref: '#/$defs/Meta'
     description: Document metadata
   id:
     title: Id
     type: string
 required:
-  - id
+- id
 title: ShopifyGraphQLResource
 type: object
 x-infer-schema: true

source-shopify-native/acmeCo/custom_collection_metafields.schema.yaml

@@ -1,36 +1,39 @@
----
 $defs:
   Meta:
     properties:
       op:
         default: u
-        description: "Operation type (c: Create, u: Update, d: Delete)"
+        description: 'Operation type (c: Create, u: Update, d: Delete)'
         enum:
-          - c
-          - u
-          - d
+        - c
+        - u
+        - d
         title: Op
         type: string
       row_id:
         default: -1
-        description: "Row ID of the Document, counting up from zero, or -1 if not known"
+        description: Row ID of the Document, counting up from zero, or -1 if not known
         title: Row Id
         type: integer
+      store:
+        anyOf:
+        - type: string
+        - type: 'null'
+        default: null
+        description: The Shopify store this document belongs to
+        title: Store
     title: Meta
     type: object
 additionalProperties: true
 properties:
   _meta:
-    $ref: "#/$defs/Meta"
-    default:
-      op: u
-      row_id: -1
+    $ref: '#/$defs/Meta'
     description: Document metadata
   id:
     title: Id
     type: string
 required:
-  - id
+- id
 title: ShopifyGraphQLResource
 type: object
 x-infer-schema: true

source-shopify-native/acmeCo/custom_collections.schema.yaml

@@ -1,36 +1,39 @@
----
 $defs:
   Meta:
     properties:
       op:
         default: u
-        description: "Operation type (c: Create, u: Update, d: Delete)"
+        description: 'Operation type (c: Create, u: Update, d: Delete)'
         enum:
-          - c
-          - u
-          - d
+        - c
+        - u
+        - d
         title: Op
         type: string
       row_id:
         default: -1
-        description: "Row ID of the Document, counting up from zero, or -1 if not known"
+        description: Row ID of the Document, counting up from zero, or -1 if not known
         title: Row Id
         type: integer
+      store:
+        anyOf:
+        - type: string
+        - type: 'null'
+        default: null
+        description: The Shopify store this document belongs to
+        title: Store
     title: Meta
     type: object
 additionalProperties: true
 properties:
   _meta:
-    $ref: "#/$defs/Meta"
-    default:
-      op: u
-      row_id: -1
+    $ref: '#/$defs/Meta'
     description: Document metadata
   id:
     title: Id
     type: string
 required:
-  - id
+- id
 title: ShopifyGraphQLResource
 type: object
 x-infer-schema: true

source-shopify-native/acmeCo/customer_metafields.schema.yaml

@@ -1,36 +1,39 @@
----
 $defs:
   Meta:
     properties:
       op:
         default: u
-        description: "Operation type (c: Create, u: Update, d: Delete)"
+        description: 'Operation type (c: Create, u: Update, d: Delete)'
         enum:
-          - c
-          - u
-          - d
+        - c
+        - u
+        - d
         title: Op
         type: string
       row_id:
         default: -1
-        description: "Row ID of the Document, counting up from zero, or -1 if not known"
+        description: Row ID of the Document, counting up from zero, or -1 if not known
         title: Row Id
         type: integer
+      store:
+        anyOf:
+        - type: string
+        - type: 'null'
+        default: null
+        description: The Shopify store this document belongs to
+        title: Store
     title: Meta
     type: object
 additionalProperties: true
 properties:
   _meta:
-    $ref: "#/$defs/Meta"
-    default:
-      op: u
-      row_id: -1
+    $ref: '#/$defs/Meta'
     description: Document metadata
   id:
     title: Id
     type: string
 required:
-  - id
+- id
 title: ShopifyGraphQLResource
 type: object
 x-infer-schema: true

source-shopify-native/acmeCo/customers.schema.yaml

@@ -1,36 +1,39 @@
----
 $defs:
   Meta:
     properties:
       op:
         default: u
-        description: "Operation type (c: Create, u: Update, d: Delete)"
+        description: 'Operation type (c: Create, u: Update, d: Delete)'
         enum:
-          - c
-          - u
-          - d
+        - c
+        - u
+        - d
         title: Op
         type: string
       row_id:
         default: -1
-        description: "Row ID of the Document, counting up from zero, or -1 if not known"
+        description: Row ID of the Document, counting up from zero, or -1 if not known
         title: Row Id
         type: integer
+      store:
+        anyOf:
+        - type: string
+        - type: 'null'
+        default: null
+        description: The Shopify store this document belongs to
+        title: Store
     title: Meta
     type: object
 additionalProperties: true
 properties:
   _meta:
-    $ref: "#/$defs/Meta"
-    default:
-      op: u
-      row_id: -1
+    $ref: '#/$defs/Meta'
     description: Document metadata
   id:
     title: Id
     type: string
 required:
-  - id
+- id
 title: ShopifyGraphQLResource
 type: object
 x-infer-schema: true