feat(lattice): add invalidatable auto-config compiler

[mgazza]

Summary

• add a pure, default-off compiler for immutable Lattice provider snapshots
• let any registered integration invalidate a monotonic generation and trigger a coalesced full re-read
• correlate provider-local nodes only through explicit stable identity assertions
• produce deterministic topology, aliases, provenance, provider generations, fields, warnings, and a semantic digest
• preserve last-known-good state across provider/compile/materialization failures

This PR is chained on #4318. It does not register a provider, write PredBat arguments, connect the planner, or enable any runtime path.

Invalidation and materialization safety

• one compiler flight at a time
• every attempt freshly reads every provider
• burst invalidations coalesce
• invalidation during a compile guarantees one bounded follow-up
• a superseded candidate is never materialized
• every accepted provider/generation/reason remains auditable
• replayed/regressing generations and same-generation content changes fail closed
• transient loss of a previously active provider cannot materialize destructive removal
• fatal compile/materialization failures retain caller-driven retry without requiring a fake new provider generation
• materializer feedback tokens cannot recurse into another compile

Identity and merge safety

• equal raw node IDs from different providers remain distinct
• explicit stable identities can correlate different provider-local node IDs
• provider identity reuse, conflicting strong identities, topology identity conflicts, duplicate providers, and qualified alias collisions fail closed
• semantic digest ignores generation-only bookkeeping while preserving current provenance
• current singular primary/control roles reject ambiguity; indexed/grouped roles and the projection layer remain a separate prerequisite before provider materialization

Validation

• auto-config compiler: 25/25 passed
• existing Lattice topology merge: 11/11 passed
• Black: passed
• pre-commit Ruff, Black, cspell, whitespace/EOF hooks: passed
• GitNexus staged change detection: LOW, two new files, zero affected execution flows

Tracking

• Predictive-Cloud-Ltd/predbat-saas-infra#561
• Predictive-Cloud-Ltd/predbat-saas-infra#466