Use shared installer tooling for installs, updates, and releases

[PabloZaiden]

Summary

• Added installer configuration for the shared installer-based one-line install flow.
• Simplified binary release workflow to use shared release tooling.
• Replaced the custom update implementation and tests with shared installer update behavior.
• Updated README install instructions and package metadata accordingly.

Changes

• Removed the bespoke install.sh script.
• Reduced custom update command logic in favor of the shared installer package.
• Updated release binary publishing workflow configuration.

[Copilot]

Pull request overview

This PR replaces Link’s bespoke install/update/release plumbing with the shared @pablozaiden/installer tooling, so binary installs, self-updates, and release publishing all follow the same external implementation.

Changes:

• Replaced the custom update implementation with a thin adapter around @pablozaiden/installer.
• Switched the binary release workflow to the shared reusable release workflow and added .github/installer.json.
• Removed the repo-local installer script and updated README installation instructions to use the shared installer.

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/server/update.ts	Replaces custom updater logic with shared installer adapter/config.
src/server/update.test.ts	Reworks tests around the adapter-based updater flow.
src/server/commands.ts	Simplifies CLI update command invocation.
README.md	Updates install instructions to the shared installer flow.
package.json	Adds the shared installer package dependency.
install.sh	Removes the bespoke installer script.
bun.lock	Locks the new installer dependency and its peer resolution.
.github/workflows/binary-release.yml	Replaces custom release job with shared reusable workflow.
.github/installer.json	Adds installer manifest consumed by the shared installer tooling.

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