Skip Hyperswarm P2P tests in CI environments

[Copilot]

Hyperswarm tests block CI due to udx-native native module failures in Deno and network instability. Skip network-dependent tests in CI while preserving full coverage locally.

Changes

Test files - Add CI detection pattern:

// Deno tests
const isCI = Deno.env.get("CI") === "true";
Deno.test({ name: "...", ignore: isCI, fn: ... });

// Node.js tests  
if (process.env.CI === "true") {
  console.log("⏭️  Skipping tests in CI");
  process.exit(0);
}

Files modified:

• legacy/tests/unit/hyperswarm-sync.test.ts - Skip network test via ignore: isCI
• tests/hyperswarm-integration.test.js - Early exit in CI with message
• legacy/tests/integration/mesh-network.test.ts - Enhanced skip logic: shouldRun = explicitlyEnabled || !isCI

Documentation:

• docs/TESTING.md - Added Hyperswarm CI isolation section
• README.md - Note about CI test behavior

Behavior

Environment	Network Tests	Override
CI (CI=true)	Skip	RUN_MESH_TESTS=true
Local (CI unset)	Run	-

Validation tests (key format, database ready checks) run in all environments - they don't import Hyperswarm.

Impact

• Unblocks release pipeline
• CI feedback under 2 minutes vs timing out
• Full P2P integration testing preserved for local development

Original prompt

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This section details on the original issue you should resolve

<issue_title>Practice: Hyperswarm test environment isolation for CI reliability</issue_title>
<issue_description>## Problem
Deno Hyperswarm tests fail in CI environment, blocking pluresdb releases. Network-dependent tests create CI instability.

Current impact

• Issue Fix release pipeline #79: Release pipeline failures
• Draft PR Skip Hyperswarm test in Deno to fix release pipeline #80: Attempting to skip tests to unblock releases
• Release velocity reduced due to test environment issues

Proposed solution

Isolate network-dependent tests from CI pipeline:

1. Option A: Skip Hyperswarm tests in CI, run only in local development
2. Option B: Mock transport layer for CI testing
3. Option C: Use in-memory/local-only test network for CI

Implementation preference

Start with Option A for immediate unblocking:

• Add CI detection in test suite
• Skip network tests when CI environment detected
• Preserve full test coverage for local development
• Consider future mocking for better CI coverage

ROI

• Unblocks releases immediately
• Maintains test coverage in development environment
• Reduces CI maintenance overhead
• Enables reliable automated releases

Acceptance criteria

• CI tests pass consistently without network dependencies
• Local development retains full Hyperswarm test coverage
• Release pipeline functions reliably
• Test skip behavior clearly documented

Related: Issue #79, Draft PR #80
Source: Weekly practices review 2026-02-16</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Practice: Hyperswarm test environment isolation for CI reliability #82

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