docs: fix README badge typo, consolidate CHANGELOG, add CITATION.cff #92

Job	Run time
Build & Test (macos-14)	2m 23s
Build & Test (ubuntu-24.04)	2m 52s
ASan + UBSan (Ubuntu)	4m 15s
Server Codecs (Ubuntu)	5m 2s
TSan (Ubuntu)	2m 56s
UBSan (Ubuntu)	2m 21s
Build & Test (Windows / MSVC)	5m 4s
Secrets Scan (gitleaks)	6s
Full Suite 394/394 (Ubuntu)	4m 51s
Benchmark Registry	6s
License Compliance	1m 39s
Coverage (Ubuntu, Clang-18)	3m 28s
Post-Quantum PQ (Ubuntu)	4m 24s
Python SAST (bandit)	10s
Mutation Testing Baseline (Ubuntu)	2m 12s
Fuzz (Ubuntu, Clang-18)	27m 8s
Benchmarks (Ubuntu)	2m 20s
	1h 11m 17s

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