chore(main): release 2.1.0

[you-n-g]

🤖 I have created a release beep boop

2.1.0 (2026-04-13)

Features

• add 'f' code_only reg and update variable_explain template (8bb5a43)
• add @ shortcut in file-path popup to insert files via fzf-lua (eff8f1a)
• add context_line_num variable with line numbers and current line marker (c88fa18)
• add register history and C-p/C-n navigation in template editor (654a68e)
• add upward .sgpt.md search and inject md_context into templates (50ad77e)
• add variable documentation feature with cword support and docs update (3a1bde5)
• add visual-mode 'k' binding for code completion docs in diff (af5e8bd)
• display history entry index in register popup (30cdf31)
• enhance code_explain template with full file description guidance (5a97650)
• highlight non-existent file paths in Files popup (e33fb1d)

Bug Fixes

• notify user on API error in chat completions and buf chat (e1e9798)
• refine the context notation explanation (7343385)
• set visual selection to current line if none is selected in DiffPopup (57223e0)
• update dictionary template to use "context" instead of "content" (b232b88)

---

This PR was generated with Release Please. See documentation.

[github-actions]

🦙 MegaLinter status: ❌ ERROR

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