Update manifest links: packageRepo and marketingUrl

[kwsantiago]

Update package metadata links in startos/manifest/index.ts:

• packageRepo → https://github.com/Start9-Community/keep-startos (the canonical StartOS package repo where PRs land)
• marketingUrl → https://privkey.io

upstreamRepo is unchanged (https://github.com/privkeyio/keep).

[helix-nine]

Thanks @kwsantiago! One thing needed before this merges: the metadata/icon changes won't be picked up by the registry unless the package version also bumps — the registry indexes by version, so an unchanged 0.4.8:0 rebuild isn't re-indexed.

Since this is a packaging-metadata-only change (repo links + icon, no upstream/code change), the right bump is the package revision — the part after the colon. One line in startos/versions/current.ts:

-  version: '0.4.8:0',
+  version: '0.4.8:1',

No new version file or migration needed for a revision bump.

I'd have pushed this onto your branch myself, but GitHub disables "allow edits from maintainers" for org-owned forks (this PR's head is on privkeyio/keep-startos), so I can't. Could you either:

• add the one-line bump above to this branch, or
• grant helix-nine write access to the fork so I can push it?

Either works — thanks!

[kwsantiago]

Done. I pushed the revision bump (0.4.8:0 → 0.4.8:1) in startos/versions/current.ts to this branch. No new version file or migration since it's metadata-only. Thanks for the catch!

[helix-nine]

Thanks for the review and merge, @MattDHill — and thanks @kwsantiago for the quick revision bump. With 0.4.8:1 the registry will re-index and pick up the updated packageRepo/marketingUrl links and icon. 🎉