refactor: migrate API from GraphQL to REST (TypeSpec/OpenAPI)

Replace the entire GraphQL stack (gqlgen, urql, graphql-codegen) with a
TypeSpec → OpenAPI 3.x pipeline using oapi-codegen for Go server stubs
and openapi-fetch + openapi-typescript for the frontend client.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 0 insertions, 29 deletions

diff --git a/backend/graphql/resolver/auth_helpers.go b/backend/graphql/resolver/auth_helpers.go
deleted file mode 100644
index dcc09fb..0000000
--- a/backend/graphql/resolver/auth_helpers.go
+++ /dev/null
@@ -1,29 +0,0 @@
-package resolver
-
-import (
-	"context"
-	"errors"
-	"fmt"
-
-	"github.com/labstack/echo/v4"
-	appcontext "undef.ninja/x/feedaka/context"
-)
-
-// getUserIDFromContext retrieves the authenticated user ID from context
-// This is a wrapper around the GetUserID function from the context package
-func getUserIDFromContext(ctx context.Context) (int64, error) {
-	userID, ok := appcontext.GetUserID(ctx)
-	if !ok {
-		return 0, fmt.Errorf("authentication required")
-	}
-	return userID, nil
-}
-
-// Helper function to get Echo context from GraphQL context
-func getEchoContext(ctx context.Context) (echo.Context, error) {
-	echoCtx, ok := ctx.Value("echo").(echo.Context)
-	if !ok {
-		return nil, errors.New("echo context not found")
-	}
-	return echoCtx, nil
-}