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/browser_test.go

@@ -0,0 +1,70 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package app
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"testing"
+
+	"gitea.dev/tea/internal/clierr"
+	"github.com/stretchr/testify/require"
+)
+
+type recordingBrowser struct{ resource, command string }
+
+func (b *recordingBrowser) Open(_ context.Context, resource, command string) error {
+	b.resource, b.command = resource, command
+	return nil
+}
+
+func TestRepositoryWebUsesInjectedBrowserAndConfigPrecedence(t *testing.T) {
+	calls := 0
+	server := newAuthenticatedServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		calls++
+		_, _ = fmt.Fprint(w, `{"full_name":"alice/project","html_url":"https://example.org/alice/project"}`)
+	}))
+	defer server.Close()
+	deps, out, diagnostics := testDeps(t)
+	browser := &recordingBrowser{}
+	deps.Browser = browser
+	deps.Getenv = serverEnv(server.URL, map[string]string{"BROWSER": "environment-browser"})
+	args := []string{"repo", "view", "--repo", "alice/project", "--web", "--no-input"}
+	require.NoError(t, Execute(context.Background(), deps, args))
+	require.Equal(t, "https://example.org/alice/project", browser.resource)
+	require.Equal(t, "environment-browser", browser.command)
+	require.NoError(t, Execute(context.Background(), deps, []string{"config", "set", "browser", "configured-browser"}))
+	require.NoError(t, Execute(context.Background(), deps, args))
+	require.Equal(t, "configured-browser", browser.command)
+	require.Equal(t, 2, calls)
+	require.Equal(t, clierr.Usage, clierr.ExitCode(Execute(context.Background(), deps, append(args, "--json"))))
+	require.Equal(t, 2, calls)
+	require.Empty(t, out.String())
+	require.Empty(t, diagnostics.String())
+}
+
+func TestDiscussionViewsShareBrowserContract(t *testing.T) {
+	for _, group := range []string{"issue", "pr"} {
+		t.Run(group, func(t *testing.T) {
+			calls := 0
+			resource := "https://example.org/alice/project/" + group + "/7"
+			server := newAuthenticatedServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+				calls++
+				_, _ = fmt.Fprintf(w, `{"number":7,"title":"Discussion","html_url":%q}`, resource)
+			}))
+			defer server.Close()
+			deps, out, diagnostics := serverDeps(t, server.URL)
+			browser := &recordingBrowser{}
+			deps.Browser = browser
+			args := []string{group, "view", "7", "--repo", "alice/project", "--web", "--no-input"}
+			require.NoError(t, Execute(context.Background(), deps, args))
+			require.Equal(t, resource, browser.resource)
+			require.Empty(t, out.String())
+			require.Empty(t, diagnostics.String())
+			require.Equal(t, clierr.Usage, clierr.ExitCode(Execute(context.Background(), deps, append(args, "--json"))))
+			require.Equal(t, 1, calls)
+		})
+	}
+}