[feature] Instance rules (#2125)

* init instance rules database model, admin api

* expose instance rules in public instance api

* public /api/v1/instance/rules route

* GET ruleById

* createRule route

* createRule auth check

* updateRule

* deleteRule

* list rules on about page

* ruleGet auth

* add about page ids for anchors

* process and store adding violated rules to reports

* admin api models for instance rules

* instance rule edit frontend

* change rule inputs to textareas

* database fixes after rebase (#2124)

* remove unused imports

* fix db migration column name

* fix tests

* fix more tests

* fix postgres error with wrongly used Ident

* add some tests, fiddle with rule model a bit, fix postgres migration

* swagger docs

---------

Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>

internal/processing/report/create.go

@@ -64,6 +64,13 @@ func (p *Processor) Create(ctx context.Context, account *gtsmodel.Account, form
 		}
 	}
 
+	// fetch rules by IDs given in the report form (noop if no rules given)
+	rules, err := p.state.DB.GetRulesByIDs(ctx, form.RuleIDs)
+	if err != nil {
+		err = fmt.Errorf("db error fetching report target rules: %w", err)
+		return nil, gtserror.NewErrorInternalError(err)
+	}
+
 	reportID := id.NewULID()
 	report := &gtsmodel.Report{
 		ID:              reportID,
@@ -75,6 +82,8 @@ func (p *Processor) Create(ctx context.Context, account *gtsmodel.Account, form
 		Comment:         form.Comment,
 		StatusIDs:       form.StatusIDs,
 		Statuses:        statuses,
+		RuleIDs:         form.RuleIDs,
+		Rules:           rules,
 		Forwarded:       &form.Forward,
 	}