feat(chezmoi): add opencode binary for linux, fix template whitespace

[yxtay]

Summary

• Add opencode archive-file entry in .chezmoiexternal.toml.tmpl for Linux (x86_64/arm64)
• Fix template delimiters across chezmoi scripts for consistent whitespace handling ({{- if }} / {{- end }} pattern)

Test plan

• Verify chezmoi apply on Linux downloads opencode binary to ~/.local/bin/opencode
• Verify scripts render without extra blank lines on both macOS and Linux

🤖 Generated with Claude Code

[gemini-code-assist]

Code Review

This pull request adds the opencode binary for Linux and modifies whitespace handling in several shell script templates. However, several critical issues were identified: adding blank lines before the shebang (#!) in templates will prevent the kernel from correctly identifying the script interpreter, and the use of leading whitespace stripping ({{-) in the antigravity script will cause URL concatenation, breaking the bash array. Additionally, it is recommended to use normalized .os and .arch variables for the opencode download URL to ensure compatibility with the release asset naming convention.

[github-actions]

✅⚠️MegaLinter analysis: Success with warnings

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	5		0	0	0.25s
✅ ACTION	zizmor	5	0	0	0	1.55s
✅ BASH	bash-exec	3		0	0	0.01s
✅ BASH	shellcheck	3		0	0	0.26s
✅ BASH	shfmt	3	0	0	0	0.02s
✅ COPYPASTE	jscpd	yes		no	no	0.82s
✅ EDITORCONFIG	editorconfig-checker	58		0	0	0.07s
✅ JSON	prettier	1	0	0	0	0.35s
✅ JSON	v8r	1		0	0	2.22s
✅ LUA	luacheck	1		0	0	0.11s
✅ LUA	stylua	1		0	0	0.02s
✅ MARKDOWN	markdownlint	4	0	0	0	0.76s
✅ MARKDOWN	markdown-table-formatter	4	0	0	0	0.18s
✅ REPOSITORY	checkov	yes		no	no	30.73s
✅ REPOSITORY	devskim	yes		no	no	1.77s
✅ REPOSITORY	dustilock	yes		no	no	0.02s
✅ REPOSITORY	gitleaks	yes		no	no	1.28s
✅ REPOSITORY	git_diff	yes		no	no	0.02s
✅ REPOSITORY	grype	yes		no	no	58.56s
✅ REPOSITORY	kingfisher	yes		no	no	7.59s
⚠️ REPOSITORY	osv-scanner	yes		1	no	0.21s
✅ REPOSITORY	secretlint	yes		no	no	1.94s
⚠️ REPOSITORY	semgrep	yes		no	1	29.81s
✅ REPOSITORY	syft	yes		no	no	2.44s
✅ REPOSITORY	trivy	yes		no	no	9.66s
✅ REPOSITORY	trivy-sbom	yes		no	no	0.16s
✅ REPOSITORY	trufflehog	yes		no	no	6.48s
✅ SPELL	lychee	17		0	0	1.24s
✅ YAML	prettier	10	0	0	0	0.61s
✅ YAML	v8r	10		0	0	9.63s
✅ YAML	yamllint	10		0	0	0.43s

Detailed Issues

⚠️ REPOSITORY / osv-scanner - 1 error

Scanning dir .
Starting filesystem walk for root: /
End status: 40 dirs visited, 129 inodes visited, 0 Extract calls, 2.513236ms elapsed, 2.513466ms wall time
No package sources found, --help for usage information.

⚠️ REPOSITORY / semgrep - 1 warning

No output available

Notices

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