feat: expand MCP tool coverage from 93 to 299 tools

Fork the official gitea-mcp and massively extend API coverage:

- Organization: orgs, members, teams, hooks, blocks, activity (34 tools)
- User: profile, followers, keys, emails, repos, blocks (30 tools)
- Repository: collaborators, webhooks, branch/tag protection, deploy keys,
  topics, git refs/trees/notes, commit status, stars/watchers, forks,
  transfers, mirrors, templates (53 tools)
- Issue: reactions, pins, subscriptions, timeline, templates (16 tools)
- Notifications: list, check, read, repo-scoped (7 tools)
- Settings: API, attachment, repo, UI settings (4 tools)
- Packages: list, get, delete, files, latest, link/unlink (7 tools)
- Miscellaneous: server version, gitignore/label/license templates,
  markdown/markup rendering, node info, signing keys (12 tools)
- Admin: user/org/repo CRUD, system webhooks, cron tasks, unadopted
  repos, emails, badges (23 tools)

Module path updated to git.lethalbits.com/lethalbits/gitea-mcp.

operation/settings/settings.go

@@ -0,0 +1,104 @@
+package settings
+
+import (
+	"context"
+	"fmt"
+
+	"git.lethalbits.com/lethalbits/gitea-mcp/pkg/gitea"
+	"git.lethalbits.com/lethalbits/gitea-mcp/pkg/log"
+	"git.lethalbits.com/lethalbits/gitea-mcp/pkg/to"
+	"git.lethalbits.com/lethalbits/gitea-mcp/pkg/tool"
+
+	"github.com/mark3labs/mcp-go/mcp"
+	"github.com/mark3labs/mcp-go/server"
+)
+
+var Tool = tool.New()
+
+const (
+	GetAPISettingsToolName        = "get_api_settings"
+	GetAttachmentSettingsToolName = "get_attachment_settings"
+	GetRepoSettingsToolName       = "get_repo_settings"
+	GetUISettingsToolName         = "get_ui_settings"
+)
+
+var (
+	GetAPISettingsTool = mcp.NewTool(
+		GetAPISettingsToolName,
+		mcp.WithDescription("Get the global API settings of the Gitea instance"),
+	)
+
+	GetAttachmentSettingsTool = mcp.NewTool(
+		GetAttachmentSettingsToolName,
+		mcp.WithDescription("Get the global attachment settings"),
+	)
+
+	GetRepoSettingsTool = mcp.NewTool(
+		GetRepoSettingsToolName,
+		mcp.WithDescription("Get the global repository settings"),
+	)
+
+	GetUISettingsTool = mcp.NewTool(
+		GetUISettingsToolName,
+		mcp.WithDescription("Get the global UI settings"),
+	)
+)
+
+func init() {
+	Tool.RegisterRead(server.ServerTool{Tool: GetAPISettingsTool, Handler: GetAPISettingsFn})
+	Tool.RegisterRead(server.ServerTool{Tool: GetAttachmentSettingsTool, Handler: GetAttachmentSettingsFn})
+	Tool.RegisterRead(server.ServerTool{Tool: GetRepoSettingsTool, Handler: GetRepoSettingsFn})
+	Tool.RegisterRead(server.ServerTool{Tool: GetUISettingsTool, Handler: GetUISettingsFn})
+}
+
+func GetAPISettingsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+	log.Debugf("Called GetAPISettingsFn")
+	client, err := gitea.ClientFromContext(ctx)
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+	}
+	settings, _, err := client.GetGlobalAPISettings()
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get API settings err: %v", err))
+	}
+	return to.TextResult(settings)
+}
+
+func GetAttachmentSettingsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+	log.Debugf("Called GetAttachmentSettingsFn")
+	client, err := gitea.ClientFromContext(ctx)
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+	}
+	settings, _, err := client.GetGlobalAttachmentSettings()
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get attachment settings err: %v", err))
+	}
+	return to.TextResult(settings)
+}
+
+func GetRepoSettingsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+	log.Debugf("Called GetRepoSettingsFn")
+	client, err := gitea.ClientFromContext(ctx)
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+	}
+	settings, _, err := client.GetGlobalRepoSettings()
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get repo settings err: %v", err))
+	}
+	return to.TextResult(settings)
+}
+
+func GetUISettingsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+	log.Debugf("Called GetUISettingsFn")
+	client, err := gitea.ClientFromContext(ctx)
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+	}
+	settings, _, err := client.GetGlobalUISettings()
+	if err != nil {
+		return to.ErrorResult(fmt.Errorf("get UI settings err: %v", err))
+	}
+	return to.TextResult(settings)
+}