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

Update PR #307 against the reorganized asap_sketchlib (PR #36) — runtime
sketches now live in the existing src/sketches/ layout (single home per
sketch concept), not under a separate `asap::` namespace.

Path swaps in asap-query-engine (legacy fork; smaller surface than
ASAPQuery-backend — no DDSketch / CountSketch / HllSketch accumulators):
- asap_sketchlib::asap::count_min::*            → ::sketches::countmin::*
- 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::*

Rename carried through:
- HeapItem → CmsHeapItem (avoids common::input::HeapItem collision)

main.rs aliases asap_runtime as `config` so existing clap-derive references
keep working.

Tests:
- cargo check -p query_engine_rust                       → clean
- cargo test -p query_engine_rust --lib precompute_operators → 87 passed, 0 failed

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

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

Author: zzylol

Cargo.lock

@@ -38,7 +38,6 @@ urlencoding = "2.1"
 flate2 = "1.0"
 async-trait = "0.1"
 xxhash-rust = { version = "0.8", features = ["xxh32", "xxh64"] }
-dsrs = { git = "https://github.com/ProjectASAP/datasketches-rs", rev = "d748ec75c80fff21f7b24897244dd1c895df2e9a" }
 base64 = "0.21"
 hex = "0.4"
 sqlparser = "0.59.0"
@@ -59,7 +58,7 @@ tracing-appender = "0.2"
 arc-swap = "1"
 csv = "1"
 elastic_dsl_utilities.workspace = true
-asap_sketchlib = { git = "https://github.com/ProjectASAP/asap_sketchlib", branch = "refactor/adopt-sketch-core-modules", features = ["asap-cli"] }
+asap_sketchlib = { git = "https://github.com/ProjectASAP/asap_sketchlib", branch = "refactor/adopt-sketch-core-modules" }
 
 [[bin]]
 name = "precompute_engine"
@@ -78,7 +77,6 @@ name = "e2e_quickstart_resource_test"
 path = "src/bin/e2e_quickstart_resource_test.rs"
 
 [dev-dependencies]
-ctor = "0.2"
 tempfile = "3.20.0"
 criterion = { version = "0.5", features = ["html_reports"] }
 
@@ -93,4 +91,3 @@ default = []
 lock_profiling = []
 # Enable extra debugging output
 extra_debugging = []
-sketchlib-tests = []