feat(library): add deterministic strategy catalog and CLI

[AetherAI3]

Summary

• derives a closed StrategyMetadataV1 catalog from canonical strategy headers and pinned IR, with stable category/slug IDs and byte-identical generation
• adds nano library list, show, search, filter, and check commands backed by the same generated artifact used by hosted consumers
• integrates catalogability and artifact drift into check_contribution.py while preserving the landed baseline controls, v1 warmup replay, signal documentation, and optional SOURCE policy
• packages the generated catalog and verifies module, asset, and outside-checkout import behavior in CI

Release and compatibility

• package version: 1.0.5
• supported Nano IR versions remain exactly 0.1.0 and 1.0.0
• receiptVersion remains 1
• Watchdog contract version remains 1
• catalog schemaVersion remains 1 and metadataVersion remains StrategyMetadataV1
• the four receipt goldens differ only at identity.nanoVersion from 1.0.4 to 1.0.5
• no strategy source, pinned IR, runtime, risk, receipt implementation, or Watchdog behavior changed

Verification

• 934 passed, 2 skipped: full suite
• 168 passed, 1 skipped: catalog, CLI, receipts, and docs focus
• all 53 contributions ready for review: 41 baseline plus 12 v1, including 8 Watchdogs
• catalog artifact SHA-256 1bc80cd16c06f13b0b4c33fa5c5029e1b96861002ebd39309bf56f9909a49df5 across multiple PYTHONHASHSEED values
• aether_nano-1.0.5 wheel built and installed outside the checkout; verified 53 sources, 53 IR fixtures, one catalog artifact, version metadata, and catalog regeneration
• independent adversarial review GREEN after closed-schema mutation probes

No performance or profitability claims are introduced.