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/diff_review.go

@@ -0,0 +1,74 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package app
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	unidiff "gitea.com/noerw/unidiff-comments"
+	"gitea.dev/tea/internal/terminal"
+)
+
+const diffReviewHelp = `# This is the current diff of PR #%d on %s.
+# To add code comments, just insert a line inside the diff with your comment,
+# prefixed with '# '. For example:
+#
+# - foo: string,
+# - bar: string,
+# + foo: int,
+# # This is a code comment
+# + bar: int,
+
+`
+
+// saveDiffReview writes a temporary annotated-diff file for interactive review.
+func saveDiffReview(dir string, n int64, repo string, diff io.Reader) (string, error) {
+	file, err := os.CreateTemp(dir, fmt.Sprintf("pull-%d-review-*.diff", n))
+	if err != nil {
+		return "", err
+	}
+	path := file.Name()
+	if _, err := fmt.Fprintf(file, diffReviewHelp, n, repo); err != nil {
+		_ = file.Close()
+		_ = os.Remove(path)
+		return "", err
+	}
+	if _, err := io.Copy(file, diff); err != nil {
+		_ = file.Close()
+		_ = os.Remove(path)
+		return "", err
+	}
+	if err := file.Close(); err != nil {
+		_ = os.Remove(path)
+		return "", err
+	}
+	return path, nil
+}
+
+// parseDiffComments extracts inline review comments from an edited unified diff.
+func parseDiffComments(r io.Reader) ([]terminal.ReviewCommentDraft, error) {
+	changeset, err := unidiff.ReadChangeset(r)
+	if err != nil {
+		return nil, fmt.Errorf("couldn't parse patch: %w", err)
+	}
+	comments := make([]terminal.ReviewCommentDraft, 0)
+	for _, file := range changeset.Diffs {
+		for _, c := range file.LineComments {
+			comment := terminal.ReviewCommentDraft{Body: c.Text, Path: c.Anchor.Path}
+			comment.Path = strings.TrimPrefix(comment.Path, "a/")
+			comment.Path = strings.TrimPrefix(comment.Path, "b/")
+			switch c.Anchor.LineType {
+			case "ADDED":
+				comment.NewLine = c.Anchor.Line
+			case "REMOVED", "CONTEXT":
+				comment.OldLine = c.Anchor.Line
+			}
+			comments = append(comments, comment)
+		}
+	}
+	return comments, nil
+}