feat!: rebuild tea on Cobra with explicit noun/verb commands (#1126)

- **switch tea to the Cobra command tree:** `internal/app` wires the packages from parts 1–4 into explicit noun/verb commands with `--repo`, `--json` / `--jq`, `--sudo` and `--debug`; `main.go` points at it. Build, release and docs tooling (`tools/cli-docs`, Makefile, goreleaser, snap, CI) and README / CONTRIBUTING are updated.
- **remove the urfave/cli command tree:** deletes `cmd/`, `modules/`, the old integration tests, contrib completion scripts and the generated `docs/CLI.md`, and drops their dependencies. This commit only deletes.

## Breaking changes

This is a breaking release. It requires Gitea 28 or newer; configuration moves to separate `config.yml` and `hosts.yml` files and requires fresh authentication, and command names, aliases, flags and output formats change. `docs/migration-1.0.md` maps every old command, flag and environment variable to its replacement.

## Issues

fixes #1118
fixes #1116
fixes #1115
fixes #1094
fixes #1091
fixes #1073
fixes #1052
fixes #1032
fixes #1023
fixes #966
fixes #908
fixes #833
fixes #831
fixes #817
fixes #804
fixes #779
fixes #770
fixes #737
fixes #697
fixes #726
fixes #677
fixes #672
fixes #633
fixes #632
fixes #560
fixes #556
fixes #523
fixes #516
fixes #510
fixes #504
fixes #500
fixes #482
fixes #406
fixes #403
fixes #373
fixes #351
fixes #344
fixes #326
fixes #325
fixes #323
fixes #246
fixes #240
fixes #232
fixes #197
fixes #172
fixes #141
fixes #69
fixes #1110
fixes #569
fixes #480
fixes #666
fixes #670
fixes #457
fixes #643
fixes #498
fixes #490
fixes #1069
fixes #834
fixes #602
fixes #328
fixes #417
fixes #571
fixes #1029
fixes #489
fixes #1050
fixes #162
fixes #430
fixes #1087
fixes #683

Reviewed-on: https://gitea.com/gitea/tea/pulls/1126
Reviewed-by: TheFox0x7 <95654+thefox0x7@noreply.gitea.com>

modules/task/login_httpsign.go

@@ -1,93 +0,0 @@
-// Copyright 2022 The Gitea Authors. All rights reserved.
-// SPDX-License-Identifier: MIT
-
-package task
-
-import (
-	"os"
-	"path/filepath"
-	"strings"
-
-	"gitea.dev/sdk"
-	"golang.org/x/crypto/ssh"
-
-	"gitea.dev/tea/modules/utils"
-)
-
-// ListSSHPubkey lists all the ssh keys in the ssh agent and the ~/.ssh/*.pub files
-// It returns a list of SSH keys in the format of:
-// "fingerprint keytype comment - principals: principals (ssh-agent or path to pubkey file)"
-func ListSSHPubkey() []string {
-	var keys []string
-
-	keys = append(keys, getAgentKeys()...)
-	keys = append(keys, getLocalKeys()...)
-
-	return keys
-}
-
-func getAgentKeys() []string {
-	ag, err := gitea.GetAgent()
-	if err != nil {
-		return []string{}
-	}
-
-	akeys, err := ag.List()
-	if err != nil {
-		return nil
-	}
-
-	var keys []string
-
-	for _, akey := range akeys {
-		if key := parseKeys([]byte(akey.String()), "ssh-agent"); key != "" {
-			keys = append(keys, key)
-		}
-	}
-
-	return keys
-}
-
-func getLocalKeys() []string {
-	var keys []string
-
-	// enumerate ~/.ssh/*.pub files
-	glob, err := utils.AbsPathWithExpansion("~/.ssh/*.pub")
-	if err != nil {
-		return []string{}
-	}
-	localPubkeyPaths, err := filepath.Glob(glob)
-	if err != nil {
-		return []string{}
-	}
-
-	// parse each local key with present privkey & compare fingerprints to online keys
-	for _, pubkeyPath := range localPubkeyPaths {
-		var pubkeyFile []byte
-		pubkeyFile, err = os.ReadFile(pubkeyPath)
-		if err != nil {
-			continue
-		}
-
-		if key := parseKeys(pubkeyFile, pubkeyPath); key != "" {
-			keys = append(keys, key)
-		}
-	}
-
-	return keys
-}
-
-func parseKeys(pkinput []byte, sshPath string) string {
-	pkey, comment, _, _, err := ssh.ParseAuthorizedKey(pkinput)
-	if err != nil {
-		return ""
-	}
-
-	if strings.Contains(pkey.Type(), "cert-v01@openssh.com") {
-		principals := pkey.(*ssh.Certificate).ValidPrincipals
-		return ssh.FingerprintSHA256(pkey) + " " + pkey.Type() + " " + comment +
-			" - principals: " + strings.Join(principals, ",") + " (" + sshPath + ")"
-	}
-
-	return ssh.FingerprintSHA256(pkey) + " " + pkey.Type() + " " + comment + " (" + sshPath + ")"
-}