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>

main.go

@@ -1,45 +1,31 @@
 // Copyright 2020 The Gitea Authors. All rights reserved.
 // SPDX-License-Identifier: MIT
 
-// Tea is command line tool for Gitea.
-package main // import "gitea.dev/tea"
+// Tea is a scriptable command line tool for Gitea.
+package main
 
 import (
 	"context"
 	"errors"
 	"fmt"
 	"os"
+	"os/signal"
+	"syscall"
 
-	"gitea.dev/tea/cmd"
-	teacontext "gitea.dev/tea/modules/context"
-	"gitea.dev/tea/modules/debug"
+	"gitea.dev/tea/internal/app"
+	"gitea.dev/tea/internal/clierr"
 )
 
 func main() {
-	app := cmd.App()
-	app.Flags = append(app.Flags, debug.CliFlag())
-	err := app.Run(context.Background(), preprocessArgs(os.Args))
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+	deps := app.System()
+	err := app.Execute(ctx, deps, os.Args[1:])
+	if ctx.Err() != nil && errors.Is(err, context.Canceled) {
+		err = clierr.Wrap(clierr.Interrupted, err)
+	}
 	if err != nil {
-		if errors.Is(err, teacontext.ErrCommandCanceled) {
-			os.Exit(0)
-		}
-		// app.Run already exits for errors implementing ErrorCoder,
-		// so we only handle generic errors with code 1 here.
-		fmt.Fprintf(app.ErrWriter, "Error: %v\n", err)
-		os.Exit(1)
+		fmt.Fprintf(deps.Streams.ErrOut, "Error: %v\n", err)
 	}
-}
-
-// preprocessArgs normalizes command-line arguments.
-// Converts "-o-" to "-o -" for the api command's output flag.
-func preprocessArgs(args []string) []string {
-	result := make([]string, 0, len(args)+1)
-	for _, arg := range args {
-		if arg == "-o-" {
-			result = append(result, "-o", "-")
-		} else {
-			result = append(result, arg)
-		}
-	}
-	return result
+	os.Exit(clierr.ExitCode(err))
 }