refactor(queryspace): make clean pre-release cut

[fazpu]

Summary

Makes the open-query work a clean pre-release cut instead of preserving an unused compatibility surface.

• Publishes exactly three assured operations: resolve_entity, question_context, and current_context.
• Demotes the 17 older query patterns to examples.* saved-query examples and removes compatibility telemetry/non-inferiority machinery.
• Routes retained operation membership and invariant checks through the accepted memory_v1 authorities.
• Verifies the complete 24-view runtime interface shape before live SQL/saved-query execution and PostgreSQL-backed Cypher confirmation.
• Keeps the executor-side Lance bridge coordinate-bound and fails closed on ambiguous or stale live membership.
• Updates D83, the accepted design, analysis, implementation notes, tests, and public API/CLI/MCP documentation.
• Keeps RLS out of the design and avoids new abstraction layers.

Important decisions

• No deprecation window or backward-compatibility adapter: the library has no users, so now is the clean-cutover point.
• Exact semantic view-definition equivalence remains a deploy/CI scratch-database gate; per-request runtime checks cover the live 24-view interface shape.
• Existing registry and transport machinery remains for the three assured operations; no replacement framework was introduced.
• Historical Batch F notes remain historical and are explicitly marked superseded.

Sources inspected

• decisions.md (D41, D48, D54, D68, D83)
• plan/designs/open_query_space_design.md
• plan/implementation_notes/open_query_space_batch_{a,b,c,d,e,f}.md
• src/rememberstack/spine/query_space/memory_v1_manifest.json
• Query-space migrations p9_01_0022 through p9_04_0025
• Public API, CLI, MCP, mounts, concepts, and project-status documentation

Verification

Local, deliberately focused:

• uv run pytest -q src/tests/surfaces/test_assured_operation_authorities.py src/tests/core/test_consumption_skill.py src/tests/spine/test_query_space_manifest.py src/tests/benchmarks/test_locomo_protocol.py — 54 passed
• uv run pytest -q src/tests/surfaces/test_query_sandbox_batch_d.py -k native_read_only_repeatable — 2 passed
• uv run ruff check src/ benchmarks/
• uv run ruff format --check src/ benchmarks/
• uv run pyright src/ benchmarks/ — 0 errors
• git diff --check
• Independent Codex and Grok final reviews: both approved. Concrete findings fixed include raw-table authority drift, cross-kind UUID ambiguity, fact-kind withdrawal binding, same-name catalog replacement, runtime schema-check lifetime, one-snapshot enrichment, and Psycopg transaction ordering.

Limitations and follow-up

• Database-backed integration coverage and the broad suite are delegated to Nightly CI run 31128251952.
• The paid LoCoMo benchmark was not run and must not be started automatically.
• No premature compatibility/deprecation follow-up remains; future additions should extend the accepted open-query contract directly.

Contributor agreement

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• I have read and agree to the RememberStack Contributor License Agreement v1.0.