chore(main): release 0.4.0

[release-please]

🤖 I have created a release beep boop

0.4.0 (2026-04-14)

⚠ BREAKING CHANGES

• update repo name (mcp-toolbox#​2968)

Features

• cloudsqlpg: Run SELECT 1 after successful connection attempt (mcp-toolbox#​2997) (6ed9700) (7e70dc8)
• skills: Add Claude Code support to generated scripts (mcp-toolbox#​2966) (a1609e1) (d210a15)
• skills: Add codex user agent (mcp-toolbox#​2973) (070e939) (d210a15)
• skills: Tool invocation via npx (mcp-toolbox#​2916) (377dc5b) (d210a15)
• add claude code plugin config (#137) (c3392b3)
• add codex plugin config (#138) (071d0ec)
• add new vectorassist skills (#159) (03874ac)
• skills: update skill scripts for the new toolbox binary (#144) (71f5b11)

Bug Fixes

• skills: Fix skill generation template (mcp-toolbox#​2914) (a01a15e) (d210a15)
• skills: Prevent empty strings overriding optional env vars in node scripts (mcp-toolbox#​2963) (c52adeb) (d210a15)

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[release-please]

🤖 Created releases:

• 0.4.0

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