docs(todo): sync after 2026-05-01 query-path-closes-the-loop work - #72

* docs(todo): sync after 2026-05-01 query-path-closes-the-loop work (#72)

Capture this session's merged backend work — #70 (tonic OTLP
gRPC max_decoding_message_size bumped to 64 MiB) and #71 (store
range_query_into overlap filter + engine closest-pane selection
+ Prometheus-adapter precompute_window annotation) — at the top
of TODO.md so the runtime-warm-tier-actually-works claim is
testable from the doc.

Cited the matching collector-side PRs (ASAPCollector#210 +
#211) in the companion-changes note so future readers can see
both halves of the wire fix.

Added one new entry under "Known reconciliation gap":
`IngestState.sketch_snapshots` is RAM-only, so backend restarts
break delta ingest until the agent restarts too. Same item is
mirrored in the collector's PROGRESS.md follow-up list — fix on
either side closes the gap.

`_Last updated_` set to 2026-05-01.

Docs only; no code changes.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor: retire sketch-core mirror (#73)

* refactor: retire sketch-core mirror

* refactor: switch consumer imports to asap_sketchlib::sketches::*

Update PR #73 against the reorganized asap_sketchlib (PR #36): the
runtime sketches no longer live under a dedicated `asap::` module — they
were merged into the existing `src/sketches/` layout (single home per
sketch concept, ASAP-runtime types appended to the file that already
holds the high-throughput in-process variant).

Mechanical path swaps in asap-query-engine:
- `asap_sketchlib::asap::dd_sketch::*`           → `::sketches::ddsketch::*`
- `asap_sketchlib::asap::count_min::*`           → `::sketches::countmin::*`
- `asap_sketchlib::asap::count_sketch::*`        → `::sketches::count::*`
- `asap_sketchlib::asap::hll_sketch::*`          → `::sketches::hll::*`
- `asap_sketchlib::asap::kll::*`                 → `::sketches::kll::*`
- `asap_sketchlib::asap::count_min_with_heap::*` → `::sketches::cms_heap::*`
- `asap_sketchlib::asap::hydra_kll::*`           → `::sketches::hydra_kll::*`
- `asap_sketchlib::asap::set_aggregator::*`      → `::sketches::set_aggregator::*`
- `asap_sketchlib::asap::delta_set_aggregator::*`→ `::sketches::delta_set_aggregator::*`
- `asap_sketchlib::asap::config::*`              → `::asap_runtime::*`

Naming-conflict renames carried through to the consumers:
- `HllDelta` → `HllSketchDelta` (octo_delta::HllDelta still wins the short name)
- `HeapItem` → `CmsHeapItem`   (common::input::HeapItem still wins the short name)

main.rs aliases `asap_sketchlib::asap_runtime as config` so the existing
clap derive references (`config::DEFAULT_CMS_IMPL`, `config::configure(...)`)
still work without touching the rest of the bin.

Tests:
- `cargo build --workspace`                                → clean
- `cargo test -p query_engine_rust --lib precompute_operators` → 141 passed, 0 failed

Depends on ProjectASAP/asap_sketchlib#36 (force-pushed `e473ccc`).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* refactor: align CountSketchDelta consumer with sketchlib-go wire format

Track the additive `hh_keys` field on `asap_sketchlib::CountSketchDelta`
so the proto delta path constructs the type with all fields filled in.

Sends an empty `hh_keys` for now: the vendored Rust proto bindings in
`asap_otel_proto::sketchlib::v1` haven't been regenerated against the
latest `.proto` (which carries `hh_keys` on the Go side). The TopK
rebuild on the proto-delta path will fire once those bindings sync;
the sketchlib-go-aligned semantics are already in place underneath.

Bumps the asap_sketchlib git dep to `refactor/wire-format-align-go`
(see asap_sketchlib PR #37).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>