fix(cli): use Kilo packages for upgrades

[catrielmuller]

Summary

• Route CLI upgrade detection, latest-version lookup, and package-manager commands through Kilo package/release names instead of OpenCode names.
• Cover npm, yarn, pnpm, bun, brew, choco, scoop, curl, and GitHub release fallback upgrade paths with regression tests.
• Update CLI docs, source links, uninstall brew naming, and add a patch changeset.

Validation

• bun test test/installation/installation.test.ts test/kilocode/installation/upgrade.test.ts
• bun run typecheck
• bun run script/extract-source-links.ts
• bun run script/check-opencode-annotations.ts --base main
• git diff --check
• git push pre-push hook: bun turbo typecheck

[vkeerthivikram]

I already made a similar pul lrequest #11253 😅

[vkeerthivikram]

if u feel yours adresses this problem better, feel free to close mine

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Review notes:

• Kilo-specific constants properly extracted into src/kilocode/installation/index.ts following fork isolation strategy
• All shared-file changes carry appropriate kilocode_change markers
• Yarn support is consistently added across all relevant code paths (upgrade, uninstall, method detection, latest lookup, auto-upgrade)
• Brew formula URL and KiloBrew.formula config are self-consistent across detection and upgrade paths
• Tests cover all package managers and the GitHub release fallback path
• Changeset present with user-facing description

Files Reviewed (10 files)

• .changeset/fix-kilo-npm-upgrade.md
• packages/kilo-docs/pages/code-with-ai/platforms/cli-reference.md
• packages/kilo-docs/source-links.md
• packages/opencode/src/cli/cmd/uninstall.ts
• packages/opencode/src/cli/cmd/upgrade.ts
• packages/opencode/src/cli/upgrade.ts
• packages/opencode/src/installation/index.ts
• packages/opencode/src/kilocode/installation/index.ts
• packages/opencode/test/installation/installation.test.ts
• packages/opencode/test/kilocode/installation/upgrade.test.ts

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_{Reviewed by deepseek-v4-pro-20260423 · 299,731 tokens}

_{Review guidance: REVIEW.md from base branch main}

[catrielmuller]

I already made a similar pul lrequest #11253 😅

Hey @vkeerthivikram, I'm really sorry I completely missed your PR. I will merge this PR because it unifies the packages into one file to simplify maintenance and adds some tests to prevent this regression from happening again.