feat(template): add search, get --raw, and help --all (#170)

## Summary
- Add `template get --raw` flag to export raw YAML spec from
`https://zeabur.com/templates/{code}.yaml`, so users can save, modify,
and redeploy templates
- Add `template search` command to filter templates by keyword
(name/description) and sort by deployment count
- Add `help --all` flag to print all commands and flags at once, making
it easy for AI agents to discover available CLI features
- Fix `template get` interactive prompt not being skipped when `--code`
flag is already provided
- Add `CLAUDE.md` with project conventions for AI-assisted development

## Usage
```bash
# Export raw YAML to a file
zeabur template get -c GSQQIJ --raw > my-template.yaml

# Search templates by keyword
zeabur template search wordpress

# Show all commands and flags
zeabur help --all
```

## Test plan
- [ ] `zeabur template get -c <code>` — shows table as before
- [ ] `zeabur template get -c <code> --raw` — outputs raw YAML
- [ ] `zeabur template search <keyword>` — filters and sorts by
deployment count
- [ ] `zeabur help --all` — prints all commands with flags
- [ ] `zeabur help` — default help still works

🤖 Generated with [Claude Code](https://claude.com/claude-code)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
  * Added `--raw` to view templates as streamed raw YAML.
  * Added template search to find and list templates by keyword.
* Replaced default help with a custom help command and new `--all`
option to print all commands and flags.

* **Usability**
  * Template Code prompt now only appears when no code is provided.

* **Documentation**
  * Added developer notes documenting project conventions and workflows.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: yuaanlin

CLAUDE.md

@@ -0,0 +1,28 @@
+# Zeabur CLI - Development Notes
+
+## Build & Test
+- Build: `go build ./...`
+- Run: `go run ./cmd/main.go <command>`
+- Test: `go test ./...`
+
+## Project Structure
+- `cmd/main.go` — entry point
+- `internal/cmd/<command>/` — each CLI command in its own package
+- `internal/cmdutil/` — shared command utilities (Factory, auth checks, spinner config)
+- `pkg/api/` — GraphQL API client
+- `pkg/model/` — data models (GraphQL struct tags)
+- `internal/cmd/root/root.go` — root command, registers all subcommands
+
+## Important: Keep `help --all` in sync
+When adding or modifying CLI commands, flags, or subcommands, the output of `zeabur help --all` automatically reflects changes (it walks the Cobra command tree at runtime). No manual update is needed for the help output itself.
+
+However, when adding a **new subcommand**, you must:
+1. Create the command package under `internal/cmd/<parent>/<new>/`
+2. Register it in the parent command file (e.g., `internal/cmd/template/template.go`)
+
+## Conventions
+- Each subcommand lives in its own package: `internal/cmd/<parent>/<sub>/<sub>.go`
+- Commands support both interactive and non-interactive modes; if a flag is provided, skip the interactive prompt
+- Use `cmdutil.SpinnerCharSet`, `cmdutil.SpinnerInterval`, `cmdutil.SpinnerColor` for spinners
+- Models in `pkg/model/` use `graphql:"fieldName"` struct tags — only add fields that exist in the backend GraphQL schema
+- Backend GraphQL schema lives in `../backend/internal/gateway/graphql/`

internal/cmd/help/help.go

@@ -0,0 +1,75 @@
+package help
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+func NewCmdHelp(rootCmd *cobra.Command) *cobra.Command {
+	var all bool
+
+	cmd := &cobra.Command{
+		Use:   "help [command]",
+		Short: "Help about any command",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if all {
+				printAllCommands(rootCmd, "")
+				return nil
+			}
+
+			// default: find the target command and show its help
+			target, _, err := rootCmd.Find(args)
+			if err != nil {
+				return err
+			}
+			return target.Help()
+		},
+	}
+
+	cmd.Flags().BoolVar(&all, "all", false, "Show all commands with their flags")
+
+	return cmd
+}
+
+func printAllCommands(cmd *cobra.Command, prefix string) {
+	fullName := prefix + cmd.Name()
+
+	if cmd.Runnable() || len(cmd.Commands()) == 0 {
+		fmt.Printf("%s - %s\n", fullName, cmd.Short)
+		printFlags(cmd, fullName)
+	}
+
+	for _, child := range cmd.Commands() {
+		if child.Hidden || child.Name() == "help" {
+			continue
+		}
+		printAllCommands(child, fullName+" ")
+	}
+}
+
+func printFlags(cmd *cobra.Command, fullName string) {
+	var flags []string
+
+	cmd.LocalFlags().VisitAll(func(f *pflag.Flag) {
+		if f.Hidden {
+			return
+		}
+		entry := "  --" + f.Name
+		if f.Shorthand != "" {
+			entry = "  -" + f.Shorthand + ", --" + f.Name
+		}
+		if f.DefValue != "" && f.DefValue != "false" {
+			entry += fmt.Sprintf(" (default: %s)", f.DefValue)
+		}
+		entry += "  " + f.Usage
+		flags = append(flags, entry)
+	})
+
+	if len(flags) > 0 {
+		fmt.Println(strings.Join(flags, "\n"))
+		fmt.Println()
+	}
+}

internal/cmd/root/root.go

@@ -10,6 +10,7 @@ import (
 
 	authCmd "github.com/zeabur/cli/internal/cmd/auth"
 	completionCmd "github.com/zeabur/cli/internal/cmd/completion"
+	helpCmd "github.com/zeabur/cli/internal/cmd/help"
 	contextCmd "github.com/zeabur/cli/internal/cmd/context"
 	deployCmd "github.com/zeabur/cli/internal/cmd/deploy"
 	deploymentCmd "github.com/zeabur/cli/internal/cmd/deployment"
@@ -129,5 +130,8 @@ func NewCmdRoot(f *cmdutil.Factory, version, commit, date string) (*cobra.Comman
 	cmd.AddCommand(completionCmd.NewCmdCompletion(f))
 	cmd.AddCommand(variableCmd.NewCmdVariable(f))
 
+	// replace default help command with our custom one that supports --all
+	cmd.SetHelpCommand(helpCmd.NewCmdHelp(cmd))
+
 	return cmd, nil
 }

internal/cmd/template/get/get.go

@@ -3,6 +3,11 @@ package get
 import (
 	"context"
 	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"time"
 
 	"github.com/briandowns/spinner"
 	"github.com/spf13/cobra"
@@ -12,6 +17,7 @@ import (
 
 type Options struct {
 	code string
+	raw  bool
 }
 
 func NewCmdGet(f *cmdutil.Factory) *cobra.Command {
@@ -26,6 +32,7 @@ func NewCmdGet(f *cmdutil.Factory) *cobra.Command {
 	}
 
 	cmd.Flags().StringVarP(&opts.code, "code", "c", "", "Template code")
+	cmd.Flags().BoolVar(&opts.raw, "raw", false, "Output raw YAML spec")
 
 	return cmd
 }
@@ -38,19 +45,18 @@ func runGet(f *cmdutil.Factory, opts Options) error {
 }
 
 func runGetInteractive(f *cmdutil.Factory, opts Options) error {
-	code, err := f.Prompter.Input("Template Code: ", "")
-	if err != nil {
-		return err
+	if opts.code == "" {
+		code, err := f.Prompter.Input("Template Code: ", "")
+		if err != nil {
+			return err
+		}
+		opts.code = code
 	}
 
-	opts.code = code
-
-	err = getTemplate(f, opts)
-	if err != nil {
+	if err := paramCheck(opts); err != nil {
 		return err
 	}
-
-	return nil
+	return getTemplate(f, opts)
 }
 
 func runGetNonInteractive(f *cmdutil.Factory, opts Options) error {
@@ -68,6 +74,10 @@ func runGetNonInteractive(f *cmdutil.Factory, opts Options) error {
 }
 
 func getTemplate(f *cmdutil.Factory, opts Options) error {
+	if opts.raw {
+		return getTemplateRaw(opts.code)
+	}
+
 	s := spinner.New(cmdutil.SpinnerCharSet, cmdutil.SpinnerInterval,
 		spinner.WithColor(cmdutil.SpinnerColor),
 		spinner.WithSuffix(" Fetching template..."),
@@ -88,6 +98,28 @@ func getTemplate(f *cmdutil.Factory, opts Options) error {
 	return nil
 }
 
+func getTemplateRaw(code string) error {
+	u := "https://zeabur.com/templates/" + url.PathEscape(code) + ".yaml"
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
+	if err != nil {
+		return fmt.Errorf("failed to build request: %w", err)
+	}
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to fetch template YAML: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("template not found (HTTP %d)", resp.StatusCode)
+	}
+
+	_, err = io.Copy(os.Stdout, resp.Body)
+	return err
+}
+
 func paramCheck(opts Options) error {
 	if opts.code == "" {
 		return fmt.Errorf("template code is required")

internal/cmd/template/search/search.go

@@ -0,0 +1,91 @@
+package search
+
+import (
+	"context"
+	"fmt"
+	"sort"
+	"strconv"
+	"strings"
+
+	"github.com/briandowns/spinner"
+	"github.com/spf13/cobra"
+
+	"github.com/zeabur/cli/internal/cmdutil"
+	"github.com/zeabur/cli/pkg/model"
+)
+
+type Options struct {
+	keyword string
+}
+
+func NewCmdSearch(f *cmdutil.Factory) *cobra.Command {
+	opts := Options{}
+
+	cmd := &cobra.Command{
+		Use:   "search [keyword]",
+		Short: "Search templates by keyword",
+		Args:  cobra.MaximumNArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if len(args) > 0 {
+				opts.keyword = args[0]
+			}
+			return runSearch(f, opts)
+		},
+	}
+
+	return cmd
+}
+
+func runSearch(f *cmdutil.Factory, opts Options) error {
+	if opts.keyword == "" {
+		if f.Interactive {
+			keyword, err := f.Prompter.Input("Search keyword: ", "")
+			if err != nil {
+				return err
+			}
+			opts.keyword = keyword
+		} else {
+			return fmt.Errorf("keyword is required")
+		}
+	}
+
+	s := spinner.New(cmdutil.SpinnerCharSet, cmdutil.SpinnerInterval,
+		spinner.WithColor(cmdutil.SpinnerColor),
+		spinner.WithSuffix(" Searching templates..."),
+	)
+	s.Start()
+	allTemplates, err := f.ApiClient.ListAllTemplates(context.Background())
+	if err != nil {
+		s.Stop()
+		return err
+	}
+	s.Stop()
+
+	keyword := strings.ToLower(opts.keyword)
+	var matched model.Templates
+	for _, t := range allTemplates {
+		name := strings.ToLower(t.Name)
+		desc := strings.ToLower(t.Description)
+		if strings.Contains(name, keyword) || strings.Contains(desc, keyword) {
+			matched = append(matched, t)
+		}
+	}
+
+	sort.Slice(matched, func(i, j int) bool {
+		return matched[i].DeploymentCnt > matched[j].DeploymentCnt
+	})
+
+	if len(matched) == 0 {
+		fmt.Println("No templates found")
+		return nil
+	}
+
+	header := []string{"Code", "Name", "Description", "Deployments"}
+	rows := make([][]string, 0, len(matched))
+	for _, t := range matched {
+		rows = append(rows, []string{t.Code, t.Name, t.Description, strconv.Itoa(t.DeploymentCnt)})
+	}
+	f.Printer.Table(header, rows)
+
+	return nil
+}

internal/cmd/template/template.go

@@ -10,6 +10,7 @@ import (
 	templateDeployCmd "github.com/zeabur/cli/internal/cmd/template/deploy"
 	templateGetCmd "github.com/zeabur/cli/internal/cmd/template/get"
 	templateListCmd "github.com/zeabur/cli/internal/cmd/template/list"
+	templateSearchCmd "github.com/zeabur/cli/internal/cmd/template/search"
 	templateUpdateCmd "github.com/zeabur/cli/internal/cmd/template/update"
 )
 
@@ -22,6 +23,7 @@ func NewCmdTemplate(f *cmdutil.Factory) *cobra.Command {
 	cmd.AddCommand(templateListCmd.NewCmdList(f))
 	cmd.AddCommand(templateDeployCmd.NewCmdDeploy(f))
 	cmd.AddCommand(templateGetCmd.NewCmdGet(f))
+	cmd.AddCommand(templateSearchCmd.NewCmdSearch(f))
 	cmd.AddCommand(templateDeleteCmd.NewCmdDelete(f))
 	cmd.AddCommand(templateCreateCmd.NewCmdCreate(f))
 	cmd.AddCommand(templateUpdateCmd.NewCmdUpdate(f))