docs: add Iceberg and DuckDB FDW docs (#36965)

* docs: add Apache Iceberg FDW docs

* docs: add DuckDB FDW docs

* fix(tests): fix docs tests erroring in CI

GitHub Auth was enabled in our supabase config.toml, which causes the supabase startup to try finding GITHUB_CLIENT_ID and GITHUB_CLIENT_SECRET in env. We don't actually need these for tests, so we can just mock them.

---------

Co-authored-by: Charis Lam <26616127+charislam@users.noreply.github.com>

.github/workflows/docs-tests.yml

@@ -42,4 +42,10 @@ jobs:
         run: pnpm i
 
       - name: Run tests
-        run: pnpm run test:docs
+        run: |
+          touch .env
+          # Needed to prevent local Supabase startup from erroring, due to
+          # GitHub Auth being enabled in config
+          echo "GITHUB_CLIENT_ID=dummy-id" >> .env
+          echo "GITHUB_SECRET=dummy-secret" >> .env
+          pnpm run test:docs

apps/docs/app/guides/database/extensions/wrappers/[[...slug]]/page.tsx

@@ -140,6 +140,13 @@ const pageMap = [
     },
     remoteFile: 'cognito.md',
   },
+  {
+    slug: 'duckdb',
+    meta: {
+      title: 'DuckDB',
+    },
+    remoteFile: 'duckdb.md',
+  },
   {
     slug: 'firebase',
     meta: {
@@ -147,6 +154,13 @@ const pageMap = [
     },
     remoteFile: 'firebase.md',
   },
+  {
+    slug: 'iceberg',
+    meta: {
+      title: 'Iceberg',
+    },
+    remoteFile: 'iceberg.md',
+  },
   {
     slug: 'logflare',
     meta: {

apps/docs/components/Navigation/NavigationMenu/NavigationMenu.constants.ts

@@ -1125,10 +1125,18 @@ export const database: NavMenuConstant = {
           name: 'Connecting to ClickHouse',
           url: '/guides/database/extensions/wrappers/clickhouse',
         },
+        {
+          name: 'Connecting to DuckDB',
+          url: '/guides/database/extensions/wrappers/duckdb',
+        },
         {
           name: 'Connecting to Firebase',
           url: '/guides/database/extensions/wrappers/firebase',
         },
+        {
+          name: 'Connecting to Iceberg',
+          url: '/guides/database/extensions/wrappers/iceberg',
+        },
         {
           name: 'Connecting to Logflare',
           url: '/guides/database/extensions/wrappers/logflare',