feat: add letters feature with detail view and listingHEADmain

- Introduced new routes for letters and their details.
- Created pages for displaying letter details and listing letters.
- Added new types for letters, including participants, messages, and attachments.
- Implemented API calls for fetching letters and managing messages (reply, edit, delete).
- Enhanced stats to include unread letters and pending districts for staff users.
- Updated styles for letters and their components.
- Added privacy settings for letters (public and friends).
- Modified user model to include letter privacy settings.
- Improved error handling and user feedback in the UI.

3 files changed, 17 insertions, 2 deletions

diff --git a/shrine/services/letter.go b/shrine/services/letter.go
index 20a4f93..c7ea741 100644
--- a/shrine/services/letter.go
+++ b/shrine/services/letter.go
@@ -75,6 +75,9 @@ func CreateLetter(userID uint, request letter.CreateRequest) (*common.MessageRes
 		if recipient.ID == userID {
 			continue
 		}
+		if recipient.LetterPrivacy == enums.LetterPrivacyFriends {
+			return nil, fail(enums.BadRequest, fmt.Sprintf(messages.RecipientNotAcceptingLetters, username))
+		}
 		recipientIDs = append(recipientIDs, recipient.ID)
 	}
 
diff --git a/shrine/services/stats.go b/shrine/services/stats.go
index 2e31c02..aa2eaab 100644
--- a/shrine/services/stats.go
+++ b/shrine/services/stats.go
@@ -1,15 +1,25 @@
 package services
 
 import (
+	"shrine/models"
 	"shrine/repositories"
 	"shrine/types/user"
 )
 
-func GetStats() user.StatsResponse {
-	return user.StatsResponse{
+func GetStats(citizen *models.User) user.StatsResponse {
+	response := user.StatsResponse{
 		Citizens:       repositories.CountCitizens(),
 		Online:         repositories.CountOnline(),
 		NewestCitizens: buildCitizenSummaries(repositories.NewestCitizens(5)),
 		OnlineCitizens: buildCitizenSummaries(repositories.OnlineCitizens(10)),
 	}
+
+	if citizen != nil {
+		response.UnreadLetters = repositories.CountUnreadLetters(citizen.ID)
+		if citizen.IsStaff() {
+			response.PendingDistricts = repositories.CountPendingDistrictSites()
+		}
+	}
+
+	return response
 }
\ No newline at end of file
diff --git a/shrine/services/warning.go b/shrine/services/warning.go
index 0b27591..553c7fb 100644
--- a/shrine/services/warning.go
+++ b/shrine/services/warning.go
@@ -10,6 +10,7 @@ import (
 	"shrine/types/hypertext"
 	"shrine/types/warning"
 	"shrine/utils/auth"
+	"shrine/utils/logger"
 	"shrine/utils/meta"
 	"shrine/utils/sanitize"
 	"strings"
@@ -32,6 +33,7 @@ func WarnUser(admin *models.User, target *models.User, request warning.WarnReque
 
 	record, err := repositories.CreateWarning(admin.ID, target.ID, title, sanitizedMessage)
 	if err != nil {
+		logger.Errorf("Warnings", messages.FailedCreateWarningDetailed, target.Username, err)
 		return nil, fail(enums.Internal, messages.FailedCreateWarning)
 	}