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/print/milestone.go

@@ -1,87 +0,0 @@
-// Copyright 2020 The Gitea Authors. All rights reserved.
-// SPDX-License-Identifier: MIT
-
-package print
-
-import (
-	"fmt"
-
-	"gitea.dev/sdk"
-)
-
-// MilestoneDetails print an milestone formatted to stdout
-func MilestoneDetails(milestone *gitea.Milestone) {
-	fmt.Printf("%s\n",
-		milestone.Title,
-	)
-	if len(milestone.Description) != 0 {
-		outputMarkdown(milestone.Description, "")
-	}
-	if milestone.Deadline != nil && !milestone.Deadline.IsZero() {
-		fmt.Printf("\nDeadline: %s\n", FormatTime(*milestone.Deadline, false))
-	}
-}
-
-// MilestonesList prints a listing of milestones
-func MilestonesList(news []*gitea.Milestone, output string, fields []string) error {
-	printables := make([]printable, len(news))
-	for i, x := range news {
-		printables[i] = &printableMilestone{x}
-	}
-	t := tableFromItems(fields, printables, isMachineReadable(output))
-	t.sort(0, true)
-	return t.print(output)
-}
-
-// MilestoneFields are all available fields to print with MilestonesList
-var MilestoneFields = []string{
-	"title",
-	"state",
-	"items_open",
-	"items_closed",
-	"items",
-	"duedate",
-	"description",
-	"created",
-	"updated",
-	"closed",
-	"id",
-}
-
-type printableMilestone struct {
-	*gitea.Milestone
-}
-
-func (m printableMilestone) FormatField(field string, machineReadable bool) string {
-	switch field {
-	case "title":
-		return m.Title
-	case "state":
-		return string(m.State)
-	case "items_open":
-		return fmt.Sprintf("%d", m.OpenIssues)
-	case "items_closed":
-		return fmt.Sprintf("%d", m.ClosedIssues)
-	case "items":
-		return fmt.Sprintf("%d/%d", m.OpenIssues, m.ClosedIssues)
-	case "duedate":
-		if m.Deadline != nil && !m.Deadline.IsZero() {
-			return FormatTime(*m.Deadline, machineReadable)
-		}
-	case "id":
-		return fmt.Sprintf("%d", m.ID)
-	case "description":
-		return m.Description
-	case "created":
-		return FormatTime(m.Created, machineReadable)
-	case "updated":
-		if m.Updated != nil {
-			return FormatTime(*m.Updated, machineReadable)
-		}
-	case "closed":
-		if m.Closed != nil {
-			return FormatTime(*m.Closed, machineReadable)
-		}
-	}
-	return ""
-}