Refactor code to remove duplicated code. The location of the profile directory dependent on the profile name was duplicated over several locations. This PR unifies this into one single helper function profileDir.
programs.vscode.profiles.<name>.userSettings accepts either JSON settings or a path to a settings.json file. The update-check defaults were merged into userSettings before deciding whether to generate JSON or link a source file, so path values failed when Nix tried to apply // to them.
Skip those merges for path-like values and use the shared isPathLike helper for VS Code's source-or-generated JSON options so Nix paths, store path strings, and derivation outputs are handled consistently.
Fixes#7726
`literalExpression` is intended just to signify code that needs to stay
a string that gets represented exactly as-is for docs. It has been
misused heavily and people get confused repeatedly on when or not to use
it because of the rampant misuse.
Extract the core vscode module logic into a reusable factory function
(mkVscodeModule.nix), following the established mkFirefoxModule pattern.
This is a pure refactor with no behavior change — programs.vscode
retains the same interface.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
