fix: normalize JSON-encoded tags in payload hydration

[jordanpartridge]

Summary

• Adds normalizeTags() to decode JSON-encoded string arrays from Qdrant payloads
• Applied at both hydration points in QdrantService (search results + scroll/get)
• Fixes TypeError on count() and implode() when tags come back as '["foo","bar"]'

Closes #142

Test plan

• 3 tests for normalizeTags: array passthrough, JSON decode, invalid input
• Full suite: 1197 passed

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: aca59f80-ed12-4de5-a5d4-af9ceba50f2d

📥 Commits

Reviewing files that changed from the base of the PR and between 761235d and 2f87cc6.

📒 Files selected for processing (2)

• app/Services/QdrantService.php
• tests/Unit/Services/QdrantServiceTest.php

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/tags-json-string-hydration

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[github-actions]

📊 Coverage Report

Metric	Coverage	Threshold	Status
Lines	95.2%	95%	✅

Files Below Threshold

File	Coverage	Uncovered Lines
app/Enums/ObservationType.php	0%	None
app/Exceptions/Qdrant/QdrantException.php	0%	None
app/Integrations/Qdrant/Requests/ScrollPoints.php	0%	None
app/Mcp/Servers/KnowledgeServer.php	0%	None
app/Services/AgentHealthService.php	0%	None
app/Commands/DaemonInstallCommand.php	23.1%	57, 58, 61, 66, 67... (+55 more)
app/Mcp/Tools/FileOutlineTool.php	63.2%	47, 48, 49, 50, 51... (+2 more)
app/Commands/ReindexAllCommand.php	63.8%	31, 32, 91, 92, 94... (+16 more)
app/Mcp/Tools/RememberTool.php	66.7%	106, 107, 108, 109, 110... (+19 more)
app/Mcp/Tools/CorrectTool.php	70.4%	53, 54, 55, 56, 57... (+3 more)

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🏆 Synapse Sentinel Gate

[github-actions]

🏆 Sentinel Certified

✅ Tests & Coverage: 0 tests passed
✅ Security Audit: No security vulnerabilities found
✅ Pest Syntax: All test files use describe/it syntax

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