fix(parser): apply Claude queue links incrementally

[naveenspark]

Summary

• Apply Claude queue and progress subagent links incrementally.
• Preserve deterministic ordering and existing first-link precedence.
• Keep link-only appends on the incremental sync path.

Why

Active Claude sessions append queue and progress events. Replacing the stored session for each event repeatedly parses large JSONL files and drives sustained CPU use.

Tests

• go test ./internal/parser -count=1
• focused incremental sync tests for Claude queue and progress links
• focused database incremental-link tests
• go vet ./internal/parser

[roborev-ci]

roborev: Combined Review (3411f0e)

Verdict: Changes require fixes for 1 finding.

Medium

• internal/parser/claude.go:946-947: claudeSubagentMapLinks entries have HasResult == false but are passed as agent links, so a queue/progress mapping and late tool_result in the same append can cause the result to be skipped and never copied to the existing call. Only treat result-bearing links as suppressing generic late-result links, or pass map-only links separately; add an integration test covering both updates persisting.

  Reported by: codex

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Reviewers: 2 done | Synthesis: codex, 8s | Total: 2m51s