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>

internal/app/milestone_state.go

@@ -0,0 +1,66 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package app
+
+import (
+	"errors"
+
+	"gitea.dev/tea/internal/clierr"
+	"gitea.dev/tea/internal/services"
+	"github.com/spf13/cobra"
+)
+
+func (a *application) milestoneStateCommand(verb string, service func(*cobra.Command) (services.Milestones, error)) *cobra.Command {
+	var byName bool
+	cmd := &cobra.Command{Use: verb + " <id-or-name>...", Short: titleCase(verb) + " one or more milestones", Args: usageArgs(cobra.MinimumNArgs(1)), RunE: func(cmd *cobra.Command, args []string) error {
+		ids := make(map[string]int64, len(args))
+		seenIDs := map[int64]bool{}
+		selectID := func(argument string, id int64) error {
+			if seenIDs[id] {
+				return clierr.Wrap(clierr.Usage, errors.New("selectors resolve to the same milestone"))
+			}
+			seenIDs[id], ids[argument] = true, id
+			return nil
+		}
+		for _, argument := range args {
+			if _, seen := ids[argument]; seen {
+				return clierr.Wrap(clierr.Usage, errors.New("milestone selectors must be unique"))
+			}
+			id, err := milestoneSelector(argument, byName)
+			if err != nil {
+				return err
+			}
+			ids[argument] = 0
+			if !byName {
+				if err := selectID(argument, id); err != nil {
+					return err
+				}
+			}
+		}
+		milestones, err := service(cmd)
+		if err != nil {
+			return err
+		}
+		if byName {
+			for _, argument := range args {
+				id, err := milestones.ResolveName(cmd.Context(), argument)
+				if err != nil {
+					return err
+				}
+				if err := selectID(argument, id); err != nil {
+					return err
+				}
+			}
+		}
+		state := "closed"
+		if verb == "reopen" {
+			state = "open"
+		}
+		return batch(a, cmd, args, func(argument string) string { return "milestone " + argument }, func(argument string) (services.Milestone, error) {
+			return milestones.Edit(cmd.Context(), ids[argument], services.MilestoneOptions{State: &state})
+		}, milestoneRow)
+	}}
+	cmd.Flags().BoolVar(&byName, "by-name", false, "Select by exact milestone titles instead of IDs")
+	return cmd
+}