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>

cmd/flags/csvflag.go

@@ -1,53 +0,0 @@
-// Copyright 2021 The Gitea Authors. All rights reserved.
-// SPDX-License-Identifier: MIT
-
-package flags
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/urfave/cli/v3"
-
-	"gitea.dev/tea/modules/utils"
-)
-
-// CsvFlag is a wrapper around cli.StringFlag, with an added GetValues() method
-// to retrieve comma separated string values as a slice.
-type CsvFlag struct {
-	cli.StringFlag
-	AvailableFields []string
-}
-
-// NewCsvFlag creates a CsvFlag, while setting its usage string and default values
-func NewCsvFlag(name, usage string, aliases, availableValues, defaults []string) *CsvFlag {
-	var availableDesc string
-	if len(availableValues) != 0 {
-		availableDesc = " Available values:"
-	}
-	return &CsvFlag{
-		AvailableFields: availableValues,
-		StringFlag: cli.StringFlag{
-			Name:    name,
-			Aliases: aliases,
-			Value:   strings.Join(defaults, ","),
-			Usage: fmt.Sprintf(`Comma-separated list of %s.%s
-			%s
-		`, usage, availableDesc, strings.Join(availableValues, ",")),
-		},
-	}
-}
-
-// GetValues returns the value of the flag, parsed as a commaseparated list
-func (f CsvFlag) GetValues(cmd *cli.Command) ([]string, error) {
-	val := cmd.String(f.Name)
-	selection := strings.Split(val, ",")
-	if f.AvailableFields != nil && val != "" {
-		for _, field := range selection {
-			if !utils.Contains(f.AvailableFields, field) {
-				return nil, fmt.Errorf("invalid field '%s'", field)
-			}
-		}
-	}
-	return selection, nil
-}