feat!: Abusive content reporting (#6977)

This implements milestones 1. and 4. from **Task F. Moderation features: Reporting** (part of [amendment of the workplan](https://codeberg.org/forgejo/sustainability/src/branch/main/2022-12-01-nlnet/2025-02-07-extended-workplan.md#task-f-moderation-features-reporting) for NLnet 2022-12-035):

> 1. A reporting feature is implemented in the database. It ensures that content remains available for review, even if a user deletes it after a report was sent.

> 4. Users can report the most relevant content types (at least: issue comments, repositories, users)

### See also:
- forgejo/discussions#291
- forgejo/discussions#304
- forgejo/design#30

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/6977
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Reviewed-by: Otto <otto@codeberg.org>
Co-authored-by: floss4good <floss4good@disroot.org>
Co-committed-by: floss4good <floss4good@disroot.org>

services/context/org.go

@@ -1,5 +1,6 @@
 // Copyright 2014 The Gogs Authors. All rights reserved.
-// Copyright 2020 The Gitea Authors.
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Copyright 2025 The Forgejo Authors. All rights reserved.
 // SPDX-License-Identifier: MIT
 
 package context
@@ -165,6 +166,7 @@ func HandleOrgAssignment(ctx *Context, args ...bool) {
 	ctx.Data["IsOrganizationMember"] = ctx.Org.IsMember
 	ctx.Data["IsPackageEnabled"] = setting.Packages.Enabled
 	ctx.Data["IsRepoIndexerEnabled"] = setting.Indexer.RepoIndexerEnabled
+	ctx.Data["IsModerationEnabled"] = setting.Moderation.Enabled
 	ctx.Data["IsPublicMember"] = func(uid int64) bool {
 		is, _ := organization.IsPublicMembership(ctx, ctx.Org.Organization.ID, uid)
 		return is