[FA migration] Hasura changes for migration (#500)

* add transition json and modify final json for fa rollout

* add instructions to readme

Author: bowenyang007

hasura-api/metadata-json/README.md

@@ -1,4 +1,7 @@
 # Hasura Metadata
 This directory contains the metadata we use for Hasura. The "metadata" is what Hasura calls the file that configures pretty much everything about a Hasura instance, including table schemas, relations, DB connection configuration, how metrics are exported, etc.
 
+> [!WARNING]
+> (09/25/2024) We added a new unified_transition.json to facilitate Fungible Asset Migration. Please use this file in Hasura while the new table is backfilling.
+
 **Note for Labs folks**: Use the file in [internal-ops](https://github.com/aptos-labs/internal-ops/blob/main/infra/apps/aptos-indexer-processors/metadata) instead. See the README there.

hasura-api/metadata-json/unified.json

@@ -1,5 +1,5 @@
 {
-  "resource_version": 10,
+  "resource_version": 38,
   "metadata": {
     "version": 3,
     "sources": [
@@ -1350,6 +1350,59 @@
               }
             ]
           },
+          {
+            "table": {
+              "name": "current_fungible_asset_balances",
+              "schema": "public"
+            },
+            "object_relationships": [
+              {
+                "name": "metadata",
+                "using": {
+                  "manual_configuration": {
+                    "column_mapping": {
+                      "asset_type": "asset_type"
+                    },
+                    "insertion_order": null,
+                    "remote_table": {
+                      "name": "fungible_asset_metadata",
+                      "schema": "public"
+                    }
+                  }
+                }
+              }
+            ],
+            "select_permissions": [
+              {
+                "role": "anonymous",
+                "permission": {
+                  "columns": [
+                    "amount",
+                    "amount_v1",
+                    "amount_v2",
+                    "asset_type",
+                    "asset_type_v1",
+                    "asset_type_v2",
+                    "is_frozen",
+                    "is_primary",
+                    "last_transaction_timestamp",
+                    "last_transaction_timestamp_v1",
+                    "last_transaction_timestamp_v2",
+                    "last_transaction_version",
+                    "last_transaction_version_v1",
+                    "last_transaction_version_v2",
+                    "owner_address",
+                    "storage_id",
+                    "token_standard"
+                  ],
+                  "filter": {},
+                  "limit": 100,
+                  "allow_aggregations": true
+                },
+                "comment": ""
+              }
+            ]
+          },
           {
             "table": {
               "name": "current_objects",
@@ -1486,6 +1539,21 @@
                     }
                   }
                 }
+              },
+              {
+                "name": "current_royalty_v1",
+                "using": {
+                  "manual_configuration": {
+                    "column_mapping": {
+                      "token_data_id": "token_data_id"
+                    },
+                    "insertion_order": null,
+                    "remote_table": {
+                      "name": "current_token_royalty_v1",
+                      "schema": "public"
+                    }
+                  }
+                }
               }
             ],
             "array_relationships": [
@@ -1709,50 +1777,23 @@
           },
           {
             "table": {
-              "name": "current_unified_fungible_asset_balances_to_be_renamed",
+              "name": "current_token_royalty_v1",
               "schema": "public"
             },
-            "configuration": {
-              "column_config": {},
-              "custom_column_names": {},
-              "custom_name": "current_fungible_asset_balances",
-              "custom_root_fields": {}
-            },
-            "object_relationships": [
-              {
-                "name": "metadata",
-                "using": {
-                  "manual_configuration": {
-                    "column_mapping": {
-                      "asset_type": "asset_type"
-                    },
-                    "insertion_order": null,
-                    "remote_table": {
-                      "name": "fungible_asset_metadata",
-                      "schema": "public"
-                    }
-                  }
-                }
-              }
-            ],
             "select_permissions": [
               {
                 "role": "anonymous",
                 "permission": {
                   "columns": [
-                    "amount",
-                    "asset_type",
-                    "is_frozen",
-                    "is_primary",
                     "last_transaction_timestamp",
                     "last_transaction_version",
-                    "owner_address",
-                    "storage_id",
-                    "token_standard"
+                    "payee_address",
+                    "royalty_points_denominator",
+                    "royalty_points_numerator",
+                    "token_data_id"
                   ],
                   "filter": {},
-                  "limit": 100,
-                  "allow_aggregations": true
+                  "limit": 100
                 },
                 "comment": ""
               }
@@ -2311,16 +2352,13 @@
             "isolation_level": "read-committed",
             "pool_settings": {
               "connection_lifetime": 600,
-              "max_connections": 48
+              "max_connections": 100
             },
             "use_prepared_statements": false
           }
         }
       }
     ],
-    "query_collections": [],
-    "allowlist": [],
-    "rest_endpoints": [],
     "api_limits": {
       "depth_limit": {
         "global": 5,