feat: add gci.yml and improve golangci.yml

1. Added `gci.yml` for GCI, a tool to control Go package import order and ensure determinism.
2. Improved `golangci.yml` by adding the `goimports` linter.
3. Optimized some import statements in the code.

.github/workflows/gci.yml

@@ -0,0 +1,25 @@
+# Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
+#
+# This Source Code Form is subject to the terms of the MIT License.
+# If a copy of the MIT was not distributed with this file,
+# You can obtain one at /~https://github.com/gogf/gf.
+
+# format go imports
+
+name: Format Go Imports
+
+on: [push, pull_request]
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '^1.23.4' # set the go version as needed
+      - name: Install gci
+        run: go install github.com/daixiang0/gci@latest
+      - name: Run gci
+        run: gci write ./...

.golangci.yml

@@ -43,6 +43,7 @@ linters:
     - goconst       # Finds repeated strings that could be replaced by a constant
     - gocritic      # Provides diagnostics that check for bugs, performance and style issues.
     - gofmt         # Gofmt checks whether code was gofmt-ed. By default this tool runs with -s option to check for code simplification
+    - goimports     # Check import statements are formatted according to the 'goimport' command. Reformat imports in autofix mode.
     - gosimple      # Linter for Go source code that specializes in simplifying code
     - govet         # Vet examines Go source code and reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
     - misspell      # Finds commonly misspelled English words in comments
@@ -79,7 +80,11 @@ linters-settings:
     locale: US
     ignore-words:
       - cancelled
-
+  goimports:
+    # A comma-separated list of prefixes, which, if set, checks import paths
+    # with the given prefixes are grouped after 3rd-party packages.
+    # Default: ""
+    local-prefixes: github.com/gogf/gf/v2
   # https://golangci-lint.run/usage/linters/#revive
   # /~https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md
   revive:

container/gtree/gtree_avltree.go

@@ -10,6 +10,7 @@ import (
 	"fmt"
 
 	"github.com/emirpasic/gods/trees/avltree"
+
 	"github.com/gogf/gf/v2/container/gvar"
 	"github.com/gogf/gf/v2/internal/rwmutex"
 	"github.com/gogf/gf/v2/text/gstr"

container/gtree/gtree_btree.go

@@ -10,6 +10,7 @@ import (
 	"fmt"
 
 	"github.com/emirpasic/gods/trees/btree"
+
 	"github.com/gogf/gf/v2/container/gvar"
 	"github.com/gogf/gf/v2/internal/rwmutex"
 	"github.com/gogf/gf/v2/text/gstr"

encoding/ghtml/ghtml.go

@@ -12,9 +12,10 @@ import (
 	"reflect"
 	"strings"
 
+	strip "github.com/grokify/html-strip-tags-go"
+
 	"github.com/gogf/gf/v2/errors/gcode"
 	"github.com/gogf/gf/v2/errors/gerror"
-	strip "github.com/grokify/html-strip-tags-go"
 )
 
 // StripTags strips HTML tags from content, and returns only text.