feat: add Stainless SDK config and misc cleanups (#132)

# Grid API SDK Configuration

- Add .stainless/stainless.yml and workspace.json for SDK generation
- Add AllErrors schema to properly handle error types
- Replace Error schema references with GridError
- Fix phone number format in UltimateBeneficialOwner to include '+' prefix
- Update .redocly.lint-ignore.yaml with additional rule exceptions
- Fix internal_accounts schema reference path

Author: pengying

.github/workflows/stainless-action.yml

@@ -0,0 +1,59 @@
+name: Build SDKs for pull request
+
+env:
+  OAS_PATH: ./openapi.yaml
+  STAINLESS_ORG: lightspark
+  STAINLESS_PROJECT: grid
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+      - closed
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  preview:
+    if: github.event.action != 'closed'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+      id-token: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 2
+
+      - name: Run preview builds
+        uses: stainless-api/upload-openapi-spec-action/preview@v1
+        with:
+          org: ${{ env.STAINLESS_ORG }}
+          project: ${{ env.STAINLESS_PROJECT }}
+          oas_path: ${{ env.OAS_PATH }}
+
+  merge:
+    if: github.event.action == 'closed' && github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+      id-token: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 2
+
+      - name: Run merge build
+        uses: stainless-api/upload-openapi-spec-action/merge@v1
+        with:
+          org: ${{ env.STAINLESS_ORG }}
+          project: ${{ env.STAINLESS_PROJECT }}
+          oas_path: ${{ env.OAS_PATH }}

.redocly.lint-ignore.yaml

@@ -1,6 +1,11 @@
 # This file instructs Redocly's linter to ignore the rules contained for specific parts of your API.
 # See https://redocly.com/docs/cli/ for more information.
 openapi.yaml:
+  no-unused-components:
+    - '#/components/schemas/AllErrors'
+  no-required-schema-properties-undefined:
+    - '#/components/schemas/QuoteSource/required/0'
+    - '#/components/schemas/Quote/properties/destination/required/0'
   no-invalid-media-type-examples:
     - >-
       #/paths/~1customers~1external-accounts/post/requestBody/content/application~1json/schema