fix: Complete schema adaptation for all tool modules

- auth.ts: Use suspendedAt instead of isSuspended, role instead of isAdmin
- comments.ts: Use role='admin' for admin user queries
- documents.ts: Use suspendedAt IS NULL for active users
- events.ts: Return actorRole instead of actorIsAdmin
- shares.ts: Use role='admin' for admin user queries

All queries validated against Outline v0.78 schema (10/10 tests pass).

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

src/tools/comments.ts

@@ -252,7 +252,7 @@ const createComment: BaseTool<CreateCommentArgs> = {
     // Note: In real implementation, createdById should come from authentication context
     // For now, we'll get the first admin user
     const userQuery = await pgClient.query(
-      'SELECT id FROM users WHERE "isAdmin" = true AND "deletedAt" IS NULL LIMIT 1'
+      `SELECT id FROM users WHERE role = 'admin' AND "deletedAt" IS NULL LIMIT 1`
     );
 
     if (userQuery.rows.length === 0) {
@@ -427,7 +427,7 @@ const resolveComment: BaseTool<GetCommentArgs> = {
 
     // Get first admin user as resolver
     const userQuery = await pgClient.query(
-      'SELECT id FROM users WHERE "isAdmin" = true AND "deletedAt" IS NULL LIMIT 1'
+      `SELECT id FROM users WHERE role = 'admin' AND "deletedAt" IS NULL LIMIT 1`
     );
 
     if (userQuery.rows.length === 0) {