Fix stale song sourcing by keeping live API authoritative

[tacticalnoot]

Motivation

• Prevent stale snapshot rows from polluting global lists and “latest” views by ensuring the live API response remains the authoritative corpus when it succeeds.
• Reduce the chance a browser-served /data/GalacticSnapshot.json serves stale data by avoiding cached snapshot fetches at runtime.

Description

• Stop appending snapshot-only songs to merged results so fetchSmols() only returns live-API IDs (snapshot is now used only as a per-field fallback and for hydrating missing metadata for live IDs) in src/services/api/smols.ts.
• Fetch the runtime snapshot with cache: 'no-store' to bypass browser cache in src/services/api/snapshot.ts.
• Changes are intentionally minimal and scoped to the hybrid data merge and snapshot loading logic to preserve existing UX behavior and polling on detail pages.

Testing

• Ran pnpm check (which executes svelte-check) and it completed but reported failures due to pre-existing TypeScript errors in unrelated labs/layout files; those errors are unrelated to these edits and predate this change.
• Could not perform live integration verification against https://api.smol.xyz in this environment due to network restrictions (ENETUNREACH), so no runtime API tests were executed here.

---

Codex Task

[cloudflare-workers-and-pages]

Deploying smol-fe with    Cloudflare Pages

Latest commit:	0c2c033
Status:	⚡️  Build in progress...

View logs