refactor: extract modem parser format families

[itsDNNS]

Summary

• extract modem payload normalization into 22 explicit, pure format profiles
• keep transport, authentication, retries, TLS, cryptography, endpoint selection, and firmware detection in concrete drivers
• retain existing driver and shared Arris import contracts through narrow adapters
• add immutable profile metadata, dependency guards, direct parser contracts, and architecture documentation

Equivalence proof

• covers all 21 built-in registry keys and 20 concrete driver classes
• preserves all 66 frozen normalized output digests and structural counts
• preserves channel order, scalar types, null and zero semantics, units, modulation, lock state, DOCSIS lanes, and counters
• handles success, empty, missing, null, malformed, locked/active, OFDM, and OFDMA inputs without network access
• removes nontrivial parser implementations from concrete drivers and reduces their source by about 32%; parser branch count falls by about 11%

Validation

• 116 passed architecture, characterization, golden, and direct-profile tests
• 3728 passed, 2 skipped complete non-E2E suite
• 531 passed complete E2E suite with TZ=UTC
• deterministic final golden report SHA-256: 5b7a01be977b6842493c34ccaf7f09821146ccc3605702daa0ae1085cd4c2396
• compileall, git diff --check, and patch secret scan passed

Tracker: https://github.com/itsDNNS/docsight-optimization-offensive/issues/2