ci: add Gitea Actions workflow with gofmt and test jobs

Add CI workflow at .gitea/workflows/ci.yml triggered on pull_request
with two jobs: fmt (gofmt check) and test (go test ./...).

Fix gofmt issues (import ordering) in 7 files so CI passes from
the start.

Fixes #7

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: CI
+
+on:
+  pull_request:
+
+jobs:
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+      - run: |
+          out=$(gofmt -l .)
+          if [ -n "$out" ]; then
+            echo "Files not formatted:"
+            echo "$out"
+            exit 1
+          fi
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+      - run: go test ./...

internal/ai_client/client.go

@@ -9,10 +9,10 @@ import (
 	"strings"
 	"time"
 
+	"gorm.io/gorm"
 	"thuanle.me/claw-email-bridge/internal/config"
 	"thuanle.me/claw-email-bridge/internal/database"
 	"thuanle.me/claw-email-bridge/internal/logging"
-	"gorm.io/gorm"
 )
 
 // Retry backoff schedule: 1s, 5s, 15s.

internal/api/router.go

@@ -5,9 +5,9 @@ import (
 	"net/http"
 
 	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
 	"thuanle.me/claw-email-bridge/internal/database"
 	"thuanle.me/claw-email-bridge/internal/logging"
-	"gorm.io/gorm"
 )
 
 // CallbackRequest is the payload received from OpenClaw.

internal/mail/imap.go

@@ -17,10 +17,10 @@ import (
 	"github.com/emersion/go-imap/v2/imapclient"
 	"github.com/google/uuid"
 	"golang.org/x/net/proxy"
+	"gorm.io/gorm"
 	"thuanle.me/claw-email-bridge/internal/config"
 	"thuanle.me/claw-email-bridge/internal/database"
 	"thuanle.me/claw-email-bridge/internal/logging"
-	"gorm.io/gorm"
 )
 
 // IMAPWatcher monitors an IMAP mailbox via IDLE and processes new emails.

internal/mail/smtp.go

@@ -6,10 +6,10 @@ import (
 	"strings"
 	"time"
 
+	"gorm.io/gorm"
 	"thuanle.me/claw-email-bridge/internal/config"
 	"thuanle.me/claw-email-bridge/internal/database"
 	"thuanle.me/claw-email-bridge/internal/logging"
-	"gorm.io/gorm"
 )
 
 // Retry backoff schedule: 1s, 5s, 15s.