Fix Apollos Preview version display on Apps page

[redreceipt]

Summary

• Look up public App Store versions for every iOS bundle in batches, isolating invalid (HTTP 400) batches while avoiding retries on timeouts or malformed responses.
• Display the demo church as Demo and label the App Store version as live (App Store Connect 1.41 is pending developer release; public lookup reports 1.40).

Validation

• 214 unit tests; Ruff check/format and mypy pass.

Proof

• Local /apps runtime with disposable Segment-like fixtures and a real Apple lookup; screenshot attached below. The preview row shows Demo, Observed 1.0.0, and App Store (live) 1.40. A separate real HTTP response verified the preview after 24 other iOS bundles still receives the live version.

[Copilot]

Copilot review overview

🟡 Changes recommended

The batching test relies on nondeterministic thread scheduling and should use bundle-specific mock responses.

Get a fresh assessment by requesting another Copilot review.

Review effort: Lite
Findings: 1

Open (1)

• Make concurrent mock responses deterministic by bundle ID · New

What changed in this PR

Updates the Apps page to fetch public App Store versions for all iOS bundles and improve demo/live-version labeling.

Changes:

• Batches concurrent App Store lookups beyond the previous 24-bundle limit.
• Displays apollos_demo as “Demo”.
• Labels public versions as “App Store (live)”.
• Adds batching and rendering coverage.

File	Summary
tests/​test_app_versions.py	Adds coverage for batching and preview display.
templates/​app_versions.html	Updates demo and live-version labels.
app_versions.py	Implements batched concurrent App Store lookups.

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[Copilot]

Copilot review overview

🔵 Needs a closer look

Batch failures can cause unrelated apps to lose their public versions and fall back to observed versions.

Review effort: Lite
Findings: None

Resolved since last review (1)

• Make concurrent mock responses deterministic by bundle ID

[Copilot]

Copilot review overview

🟡 Changes recommended

Bound fallback retries and validate malformed App Store responses before approval.

Get a fresh assessment by requesting another Copilot review.

Review effort: Lite
Findings: 1

Open (1)

• Bound recursive retries on transient lookup failures · New

[Copilot]

Copilot review overview

🟢 Approved

All reviewed changes are covered and no unresolved blocking issues were identified.

Review effort: Lite
Findings: None

Resolved since last review (1)

• Bound recursive retries on transient lookup failures