feat(mcp): add issue replay prompts #348

Job	Run time
security	21s
Coverage (llvm-cov)	1m 20s
version	5s
mutation	1m 38s
cargo-deny (advisories + licenses)	25s
lint	1m 8s
test (macos-latest)	39s
test (ubuntu-latest)	37s
test (windows-latest)	50s
	7m 3s

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