chore: prepare v2.7.0 release

[helizaga]

Summary

• Bump git gtr version to 2.7.0.
• Add v2.7.0 changelog entries for the merged remote, clean, Fish, copy, hook, and repo-root fixes.
• Update changelog compare links.

Testing

• ./bin/gtr version
• git diff --check
• shellcheck bin/gtr bin/git-gtr lib/*.sh lib/commands/*.sh adapters/editor/*.sh adapters/ai/*.sh
• bats tests/

Summary by CodeRabbit

• Release

  • Added 2.7.0 changelog entry dated 2026-04-27 and updated changelog links/labels for consistency.

• New Features

  • New remote-selection options for default-branch detection (--remote / config)
  • Added --to <ref> limit for merged-cleanup flows

• Bug Fixes

  • Fixed repo-root detection from subdirectories
  • Fixed stdin-consuming hook behavior
  • Fixed Fish shell navigation for git gtr cd
  • Ensured git gtr copy respects include/exclude across dry-run and multi-mode

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 6947abf and 4d9243b.

📒 Files selected for processing (1)

• CHANGELOG.md

🚧 Files skipped from review as they are similar to previous changes (1)

• CHANGELOG.md

---

Walkthrough

Adds a 2.7.0 release entry to CHANGELOG.md documenting new CLI/config options for remote selection and a --to <ref> limit for merged-cleanups, several bug fixes, and updates version-compare links. Updates the GTR_VERSION constant in bin/git-gtr from 2.6.0 to 2.7.0.

Changes

Cohort / File(s)	Summary
Version Constant Update bin/git-gtr	Bumped GTR_VERSION from 2.6.0 to 2.7.0 (affects git gtr version output).
Changelog / Release Notes CHANGELOG.md	Added 2.7.0 entry dated 2026-04-27 describing new CLI/config options (gtr.defaultRemote/--remote, --to <ref>), fixes (repo-root subdirectory resolution, stdin-consuming hooks, Fish git gtr cd Enter navigation, git gtr copy include/exclude behavior), and adjusted version-compare link targets (moved [Unreleased] → compare from v2.7.0, added [2.7.0], redefined [2.6.0]).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 I hopped through lines and bumped the tag,
A tiny change, a version flag,
Changelog whispers, fixes neat,
2.7.0 — a carrot treat! 🥕✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'chore: prepare v2.7.0 release' directly and accurately summarizes the main changes: bumping version to 2.7.0 and updating CHANGELOG.md with corresponding release entries.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release/v2.7.0

---

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@CHANGELOG.md`:
- Line 20: Update the CHANGELOG.md entry that currently reads "gtr cd" to use
the user-facing command form "git gtr cd" (or at minimum "git gtr") so
documentation follows the guideline; search for the exact token "gtr cd" in
CHANGELOG.md and replace it with "git gtr cd", ensuring the surrounding sentence
remains grammatically correct and any other `gtr` references follow the "git
gtr" format.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: 18668381-bd0c-42b1-80c3-e01d521def49

📥 Commits

Reviewing files that changed from the base of the PR and between 9d49c4b and 6947abf.

📒 Files selected for processing (2)

• CHANGELOG.md
• bin/git-gtr