Implement Prototype 1 improvements: unified members, project filters, audit expansion, filtering rounds, special awards

- Unified Member Management: merge /admin/users and /admin/mentors into /admin/members with role tabs, search, pagination
- Project List Filters: add search, multi-status filter, round/category/country selects, boolean toggles, URL persistence
- Audit Log Expansion: track logins, round state changes, evaluation submissions, file access, role changes via shared logAudit utility
- Founding Date Field: add foundedAt to Project model with CSV import support
- Filtering Round System: configurable rules (field-based, document check, AI screening), execution engine, results review with override/reinstate
- Special Awards System: named awards with eligibility criteria, dedicated jury, PICK_WINNER/RANKED/SCORED voting modes, AI eligibility
- Dashboard resilience: wrap heavy queries in try-catch to prevent error boundary on transient DB failures
- Reusable pagination component extracted to src/components/shared/pagination.tsx
- Old /admin/users and /admin/mentors routes redirect to /admin/members
- Prisma migration for all schema additions (additive, no data loss)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/server/routers/user.ts

@@ -170,6 +170,7 @@ export const userRouter = router({
     .input(
       z.object({
         role: z.enum(['SUPER_ADMIN', 'PROGRAM_ADMIN', 'JURY_MEMBER', 'MENTOR', 'OBSERVER']).optional(),
+        roles: z.array(z.enum(['SUPER_ADMIN', 'PROGRAM_ADMIN', 'JURY_MEMBER', 'MENTOR', 'OBSERVER'])).optional(),
         status: z.enum(['INVITED', 'ACTIVE', 'SUSPENDED']).optional(),
         search: z.string().optional(),
         page: z.number().int().min(1).default(1),
@@ -177,12 +178,16 @@ export const userRouter = router({
       })
     )
     .query(async ({ ctx, input }) => {
-      const { role, status, search, page, perPage } = input
+      const { role, roles, status, search, page, perPage } = input
       const skip = (page - 1) * perPage
 
       const where: Record<string, unknown> = {}
 
-      if (role) where.role = role
+      if (roles && roles.length > 0) {
+        where.role = { in: roles }
+      } else if (role) {
+        where.role = role
+      }
       if (status) where.status = status
       if (search) {
         where.OR = [
@@ -210,7 +215,7 @@ export const userRouter = router({
             createdAt: true,
             lastLoginAt: true,
             _count: {
-              select: { assignments: true },
+              select: { assignments: true, mentorAssignments: true },
             },
           },
         }),
@@ -238,7 +243,7 @@ export const userRouter = router({
         where: { id: input.id },
         include: {
           _count: {
-            select: { assignments: true },
+            select: { assignments: true, mentorAssignments: true },
           },
         },
       })
@@ -356,6 +361,21 @@ export const userRouter = router({
         },
       })
 
+      // Track role change specifically
+      if (data.role && data.role !== targetUser.role) {
+        await ctx.prisma.auditLog.create({
+          data: {
+            userId: ctx.user.id,
+            action: 'ROLE_CHANGED',
+            entityType: 'User',
+            entityId: id,
+            detailsJson: { previousRole: targetUser.role, newRole: data.role },
+            ipAddress: ctx.ip,
+            userAgent: ctx.userAgent,
+          },
+        }).catch(() => {})
+      }
+
       return user
     }),
 
@@ -816,7 +836,7 @@ export const userRouter = router({
       await ctx.prisma.auditLog.create({
         data: {
           userId: ctx.user.id,
-          action: 'SET_PASSWORD',
+          action: 'PASSWORD_SET',
           entityType: 'User',
           entityId: ctx.user.id,
           detailsJson: { timestamp: new Date().toISOString() },
@@ -896,7 +916,7 @@ export const userRouter = router({
       await ctx.prisma.auditLog.create({
         data: {
           userId: ctx.user.id,
-          action: 'CHANGE_PASSWORD',
+          action: 'PASSWORD_CHANGED',
           entityType: 'User',
           entityId: ctx.user.id,
           detailsJson: { timestamp: new Date().toISOString() },