fix(loracloud): bump request timestamp by 1s on GNSS-NG EoG

[michaelbeutler]

Summary

• When the GNSS-NG header EoG bit is set on a Tag XL uplink, add 1 second to the request timestamp sent to LoRaCloud/Traxmate so the EoG message sorts strictly after the prior captures in the same group.
• Applied in DeliverUplinkMessage after the header is decoded, so both the v1 and v2 Solve paths benefit. The response-side GetTimestamp() surface is unchanged.
• New pointer is allocated so the caller's *float64 is never mutated.

Test plan

• go test ./pkg/solver/loracloud/...
• go test ./pkg/decoder/tagxl/...
• go test ./...
• New tests: EoG bumps by 1s, non-EoG untouched, nil timestamp stays nil, caller pointer not mutated

Summary by CodeRabbit

• New Features

  • End-of-group uplink detection now automatically adjusts the request timestamp by 1 second before transmission to the LoRa Cloud endpoint.

• Tests

  • Added test coverage for end-of-group timestamp adjustment behavior.
  • Added test to verify caller-provided timestamp values are not mutated during processing.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: b88dacbc-2c06-48b5-bd7c-f95ec865ea53

📥 Commits

Reviewing files that changed from the base of the PR and between 73522cb and 9274acf.

📒 Files selected for processing (3)

• .secrets.baseline
• pkg/solver/loracloud/loracloud.go
• pkg/solver/loracloud/loracloud_test.go

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📝 Walkthrough

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Walkthrough

This PR introduces timestamp adjustment logic to DeliverUplinkMessage for EndOfGroup uplinks in the LoraCloud solver. When the GNSS-NG header signals an EndOfGroup condition and a non-nil timestamp exists, the timestamp is incremented by 1 second before the HTTP request is constructed. Two unit tests validate the adjustment behavior and confirm caller timestamps remain unmodified.

Changes

LoraCloud EndOfGroup Timestamp Adjustment

Layer / File(s)	Summary
EndOfGroup timestamp adjustment logic pkg/solver/loracloud/loracloud.go	When decoded GNSS-NG header indicates EndOfGroup and uplinkMsg.Timestamp is non-nil, the timestamp is incremented by 1 second before request construction.
Test coverage and helper utilities pkg/solver/loracloud/loracloud_test.go	Adds encoding/json import and float64Ptr helper function. Two new tests verify timestamp adjustment occurs only under EndOfGroup conditions and confirm the caller's timestamp pointer is not mutated.
Secrets baseline maintenance .secrets.baseline	Line numbers for two hex high-entropy findings updated to reflect code changes, and baseline metadata timestamp refreshed to 2026-05-28T10:25:32Z.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly matches the main change: timestamp bump on GNSS-NG EoG detection in LoRaCloud integration.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/loracloud-eog-timestamp-bump

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[Copilot]

Pull request overview

This PR adjusts LoRaCloud uplink delivery so GNSS-NG End-of-Group messages with a request timestamp are sent 1 second later, ensuring they sort after prior captures in the same group without mutating the caller’s timestamp pointer.

Changes:

• Adds local timestamp adjustment for EoG uplinks before marshaling the LoRaCloud request.
• Adds tests for EoG timestamp bumping, nil timestamp behavior, non-EoG behavior, and caller pointer immutability.
• Updates the secrets baseline line numbers after test file changes.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
pkg/solver/loracloud/loracloud.go	Adds EoG timestamp adjustment before sending uplink requests.
pkg/solver/loracloud/loracloud_test.go	Adds regression coverage for timestamp adjustment behavior.
.secrets.baseline	Refreshes baseline metadata/line numbers for shifted test content.

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[coderabbitai]

Actionable comments posted: 0