Scoped Branch - Rule Templates:

- Add rule templates for reusable access control rules
- Support template assignment to resources with automatic rule propagation
- Add template management UI
- Implement template rule protection on resource rules page

server/routers/ruleTemplate/listRuleTemplates.ts

@@ -0,0 +1,127 @@
+import { Request, Response, NextFunction } from "express";
+import { z } from "zod";
+import { db } from "@server/db";
+import { ruleTemplates } from "@server/db";
+import { eq, sql } from "drizzle-orm";
+import response from "@server/lib/response";
+import HttpCode from "@server/types/HttpCode";
+import createHttpError from "http-errors";
+import logger from "@server/logger";
+import { fromError } from "zod-validation-error";
+import { OpenAPITags, registry } from "@server/openApi";
+
+const listRuleTemplatesParamsSchema = z
+    .object({
+        orgId: z.string().min(1)
+    })
+    .strict();
+
+const listRuleTemplatesQuerySchema = z.object({
+    limit: z
+        .string()
+        .optional()
+        .default("1000")
+        .transform(Number)
+        .pipe(z.number().int().positive()),
+    offset: z
+        .string()
+        .optional()
+        .default("0")
+        .transform(Number)
+        .pipe(z.number().int().nonnegative())
+});
+
+export type ListRuleTemplatesResponse = {
+    templates: Awaited<ReturnType<typeof queryRuleTemplates>>;
+    pagination: { total: number; limit: number; offset: number };
+};
+
+function queryRuleTemplates(orgId: string) {
+    return db
+        .select({
+            templateId: ruleTemplates.templateId,
+            orgId: ruleTemplates.orgId,
+            name: ruleTemplates.name,
+            description: ruleTemplates.description,
+            createdAt: ruleTemplates.createdAt
+        })
+        .from(ruleTemplates)
+        .where(eq(ruleTemplates.orgId, orgId))
+        .orderBy(ruleTemplates.createdAt);
+}
+
+registry.registerPath({
+    method: "get",
+    path: "/org/{orgId}/rule-templates",
+    description: "List rule templates for an organization.",
+    tags: [OpenAPITags.Org, OpenAPITags.RuleTemplate],
+    request: {
+        params: listRuleTemplatesParamsSchema,
+        query: listRuleTemplatesQuerySchema
+    },
+    responses: {}
+});
+
+export async function listRuleTemplates(
+    req: Request,
+    res: Response,
+    next: NextFunction
+): Promise<any> {
+    try {
+        const parsedQuery = listRuleTemplatesQuerySchema.safeParse(req.query);
+        if (!parsedQuery.success) {
+            return next(
+                createHttpError(
+                    HttpCode.BAD_REQUEST,
+                    fromError(parsedQuery.error)
+                )
+            );
+        }
+        const { limit, offset } = parsedQuery.data;
+
+        const parsedParams = listRuleTemplatesParamsSchema.safeParse(
+            req.params
+        );
+        if (!parsedParams.success) {
+            return next(
+                createHttpError(
+                    HttpCode.BAD_REQUEST,
+                    fromError(parsedParams.error)
+                )
+            );
+        }
+        const { orgId } = parsedParams.data;
+
+        const baseQuery = queryRuleTemplates(orgId);
+
+        let templatesList = await baseQuery.limit(limit).offset(offset);
+
+        // Get total count
+        const countResult = await db
+            .select({ count: sql<number>`cast(count(*) as integer)` })
+            .from(ruleTemplates)
+            .where(eq(ruleTemplates.orgId, orgId));
+        
+        const totalCount = Number(countResult[0]?.count || 0);
+
+        return response<ListRuleTemplatesResponse>(res, {
+            data: {
+                templates: templatesList,
+                pagination: {
+                    total: totalCount,
+                    limit,
+                    offset
+                }
+            },
+            success: true,
+            error: false,
+            message: "Rule templates retrieved successfully",
+            status: HttpCode.OK
+        });
+    } catch (error) {
+        logger.error(error);
+        return next(
+            createHttpError(HttpCode.INTERNAL_SERVER_ERROR, "An error occurred")
+        );
+    }
+}