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/man.go

@@ -1,64 +0,0 @@
-// Copyright 2025 The Gitea Authors. All rights reserved.
-// SPDX-License-Identifier: MIT
-
-package cmd
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"path/filepath"
-
-	docs "github.com/urfave/cli-docs/v3"
-	"github.com/urfave/cli/v3"
-)
-
-// DocRenderFlags are the flags for documentation generation, used by `./docs/docs.go` and the `generate-man-page` sub command
-var DocRenderFlags = []cli.Flag{
-	&cli.StringFlag{
-		Name:    "out",
-		Usage:   "Path to output docs to, otherwise prints to stdout",
-		Aliases: []string{"o"},
-	},
-}
-
-// CmdGenerateManPage is the sub command to generate the `tea` man page
-var CmdGenerateManPage = cli.Command{
-	Name:   "man",
-	Usage:  "Generate man page",
-	Hidden: true,
-	Flags:  DocRenderFlags,
-	Action: func(ctx context.Context, cmd *cli.Command) error {
-		return RenderDocs(cmd, cmd.Root(), func(cmd *cli.Command) (string, error) {
-			return docs.ToManWithSection(cmd, 1)
-		})
-	},
-}
-
-// RenderDocs renders the documentation for `target` using the supplied `render` function
-func RenderDocs(cmd, target *cli.Command, render func(*cli.Command) (string, error)) error {
-	out, err := render(target)
-	if err != nil {
-		return err
-	}
-	outPath := cmd.String("out")
-	if outPath == "" {
-		fmt.Print(out)
-		return nil
-	}
-
-	if err = os.MkdirAll(filepath.Dir(outPath), os.ModePerm); err != nil {
-		return err
-	}
-
-	fi, err := os.Create(outPath)
-	if err != nil {
-		return err
-	}
-	defer fi.Close()
-	if _, err = fi.WriteString(out); err != nil {
-		return err
-	}
-
-	return nil
-}