Clean up codebase: rename stdlib layer, strip porting residue, fix tooling

Rename src/jolt -> stdlib (the runtime-loaded layer; jolt-core stays the
seed-baked layer) and update the loader / emit-image / doc paths. Drop dead
code: the spike/ experiments, the duplicate clojuredocs-export.edn (json moves
to tools/), the Janet-era jolt.http binding, and the orphaned
persistent_vector.clj whose ns/path didn't even match.

Strip porting residue from comments and docstrings across host/chez, jolt-core,
stdlib, tests, and docs: internal issue ids, "Phase N" markers, and the "vs
Janet" historical exposition, leaving present-tense descriptions and the real
JVM-Clojure semantic contrasts. Same pass over the corpus suite labels. The seed
is unchanged (docstrings/comments aren't emitted), so the self-host fixpoint and
corpus are untouched.

Port tools/spec_coverage.py off the dead janet probe to bin/joltc and regenerate
coverage.md; drop the dead :host/janet rule from certify.clj and regenerate the
conformance profile. Add docs/host-interop.md (the JVM shims and how to register
your own host class from a library) and a writing-style note in CLAUDE.md.

Stabilize the four racy concurrency corpus cases (future-cancel and agent
send/send-off): give the future a sleeping body and the agent a slow action, so
cancel reliably catches an in-flight future and deref reliably reads the
pre-update snapshot. They certify deterministically now, so drop their :flaky
allowlist entries and the orphaned legend.

test/conformance/profile.edn

@@ -1,73 +1,53 @@
 {:doc
  "Conformance profile for test/chez/corpus.edn, generated by certify.clj. Each entry is a NON-portable case (keyed by [suite label]) and the host feature(s) it requires. Cases NOT listed are portable — they pass on any faithful Clojure. A runtime's conformance LEVEL = portable + the feature families it implements. See SPEC.md.",
  :clojure-version "1.12.5",
- :portable-count 2674,
- :non-portable-count 246,
+ :portable-count 2735,
+ :non-portable-count 167,
  :feature-counts
- {:concurrency/snapshot 5,
-  :host/arrays 12,
-  :host/janet 16,
-  :host/jvm-interop 174,
-  :impl/representation 1,
-  :numerics/double-only 17,
+ {:host/arrays 10,
+  :host/jvm-interop 149,
   :perf/unbounded 1,
-  :printer/jolt 4,
-  :reader/jolt 13,
-  :strictness/jolt 3},
+  :printer/jolt 2,
+  :reader/jolt 4,
+  :strictness/jolt 1},
  :entries
  [{:suite "*ns* / identity & printing",
    :label "tracks in-ns",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.core / futures — predicates",
-   :label "cancel an in-flight future returns true",
-   :bucket :divergent,
-   :features [:concurrency/snapshot]}
-  {:suite "clojure.core / futures — snapshot (copy) semantics",
-   :label "captured atom is snapshotted, not shared",
-   :bucket :divergent,
-   :features [:concurrency/snapshot]}
-  {:suite "clojure.core / leaf batch (complement fnil munge etc.)",
-   :label "bigdec",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
   {:suite "clojure.core / leaf batch (complement fnil munge etc.)",
    :label "supers empty set",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.core / pmap family",
-   :label "snapshot semantics",
-   :bucket :divergent,
-   :features [:concurrency/snapshot]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "PI",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "floor",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "pow",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "round",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "signum",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "sqrt",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "tan of 0",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "clojure.math (jolt-h79)",
+  {:suite "clojure.math",
    :label "to-radians",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
@@ -91,11 +71,6 @@
    :label "try multi-body last",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite
-   "conformance / native-op parity (compile emits janet ops at guarded arities)",
-   :label "native unary div",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
   {:suite "conformance / try / catch",
    :label "ex-data",
    :bucket :jvm-error,
@@ -108,14 +83,6 @@
    :label "try catch",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "core / extenders",
-   :label "lists extended type",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "core / extenders",
-   :label "seq of tags",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "core / with-open",
    :label "binding visible",
    :bucket :jvm-error,
@@ -124,10 +91,6 @@
    :label "body result",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "core / with-open",
-   :label "close on throw",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "core / with-open",
    :label "close runs",
    :bucket :jvm-error,
@@ -220,22 +183,6 @@
    :label "global underive",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "host-interop / bake env scrub",
-   :label "full snapshot filtered to the allowlist",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "host-interop / bake env scrub",
-   :label "listed name still reads",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "host-interop / bake env scrub",
-   :label "unlisted name reads nil under the allowlist",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "host-interop / class tokens & readers",
-   :label "class name evaluates to canonical string",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "host-interop / class tokens & readers",
    :label "dispatch-only class name",
    :bucket :jvm-error,
@@ -256,10 +203,6 @@
    :label "HashMap put + size",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "host-interop / exception + HashMap shims",
-   :label "getMessage on a thrown string",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "host-interop / migratus class shims",
    :label "Timestamp is millis",
    :bucket :jvm-error,
@@ -332,10 +275,6 @@
    :label "String/valueOf nil",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "interop / StringReader & StringBuilder",
-   :label "line-seq over file reader",
-   :bucket :jvm-error,
-   :features [:host/janet]}
   {:suite "interop / StringReader & StringBuilder",
    :label "mark/reset",
    :bucket :jvm-error,
@@ -360,30 +299,6 @@
    :label "method with args",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "interop / janet bridge",
-   :label "janet.os/clock is a number",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / janet bridge",
-   :label "janet.string module fn",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / janet bridge",
-   :label "jolt vector crosses as a janet table",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / janet bridge",
-   :label "module fn janet.<mod>/<name>",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / janet bridge",
-   :label "root builtin janet/<name>",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / janet bridge",
-   :label "root builtin janet/type",
-   :bucket :jvm-error,
-   :features [:host/janet]}
   {:suite "interop / java.time shims",
    :label "Instant instance",
    :bucket :jvm-error,
@@ -424,30 +339,6 @@
    :label "withLocale chain",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "interop / jolt.interop",
-   :label "janet-type keyword",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / jolt.interop",
-   :label "janet-type list",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / jolt.interop",
-   :label "janet-type number",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / jolt.interop",
-   :label "janet-type quoted list",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "interop / jolt.interop",
-   :label "janet-type string",
-   :bucket :jvm-error,
-   :features [:host/janet]}
-  {:suite "io / *in* + with-in-str + read-line",
-   :label "*in* is bound",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "io / cold tagged types via print-method",
    :label "atom override fires nested",
    :bucket :divergent,
@@ -480,18 +371,6 @@
    :label "StringWriter accumulates",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "io / print-method multimethod",
-   :label "defmethod fires nested in a map",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "io / print-method multimethod",
-   :label "defmethod fires through prn",
-   :bucket :divergent,
-   :features [:printer/jolt]}
-  {:suite "io / print-method multimethod",
-   :label "defmethod overrides a record, top level",
-   :bucket :divergent,
-   :features [:printer/jolt]}
   {:suite "io / print-method multimethod",
    :label "direct builtin override",
    :bucket :jvm-error,
@@ -507,7 +386,7 @@
   {:suite "io / slurp, spit, printf, flush (host-classified)",
    :label "file-seq finds files",
    :bucket :jvm-error,
-   :features [:host/janet]}
+   :features [:host/jvm-interop]}
   {:suite "macros / core-overlay",
    :label "assert message",
    :bucket :jvm-error,
@@ -520,22 +399,10 @@
    :label "condp no match",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "macros / defmacro",
-   :label "macroexpand-1",
-   :bucket :divergent,
-   :features [:impl/representation]}
   {:suite "macros / time, with-redefs, macroexpand",
    :label "with-redefs restores on throw",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "maps / literal construction",
-   :label "source order through syntax-quote",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "metadata / def metadata",
-   :label "^Type tag on var",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "metadata / type hints",
    :label "symbol hint -> :tag",
    :bucket :divergent,
@@ -568,42 +435,6 @@
    :label "require :as registers the alias",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "numbers / arithmetic",
-   :label "divide to fraction",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "numbers / literal syntax",
-   :label "bigdec int M",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "numbers / literal syntax",
-   :label "bigdec suffix M",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "numbers / literal syntax",
-   :label "neg ratio",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "numbers / literal syntax",
-   :label "ratio -> double",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "numbers / literal syntax",
-   :label "ratio 3/4",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "numbers / printing of inf & nan",
-   :label "inf inside coll",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "numbers / printing of inf & nan",
-   :label "pr-str Infinity",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "predicates / compare, type, any? (stage 3)",
-   :label "type of record",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "predicates / overlay-migrated",
    :label "keyword-identical?",
    :bucket :jvm-error,
@@ -620,54 +451,14 @@
    :label "undefined?",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "predicates / tagged-value (Phase 4)",
+  {:suite "predicates / tagged-value",
    :label "atom? no",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "predicates / tagged-value (Phase 4)",
+  {:suite "predicates / tagged-value",
    :label "atom? yes",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "predicates / tagged-value (Phase 4)",
-   :label "chunked-seq? always false",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "reader / dispatch & sugar",
-   :label "reader cond :jolt",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "reader / dispatch & sugar",
-   :label "reader cond no match",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "reader / dispatch & sugar",
-   :label "reader cond splice",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "reader / dispatch & sugar",
-   :label "reader cond splice no match",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "reader / dispatch & sugar",
-   :label "reader conditional",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "reader / scalar literals",
-   :label "bigdec suffix M",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "reader / scalar literals",
-   :label "ratio -> double",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "reader / syntax-quote literal collapse (spec 2.4 S25)",
-   :label "bool nested",
-   :bucket :divergent,
-   :features [:reader/jolt]}
-  {:suite "reader / syntax-quote literal collapse (spec 2.4 S25)",
-   :label "nil nested",
-   :bucket :divergent,
-   :features [:reader/jolt]}
   {:suite "regex / Pattern statics & String regex methods",
    :label "Pattern/MULTILINE ^",
    :bucket :jvm-error,
@@ -708,19 +499,19 @@
    :label "re-pattern is regex?",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "set / nil element (jolt-bn2p)",
+  {:suite "set / nil element",
    :label "transient conj! nil",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "set / nil element (jolt-bn2p)",
+  {:suite "set / nil element",
    :label "transient contains? nil",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "set / nil element (jolt-bn2p)",
+  {:suite "set / nil element",
    :label "transient disj! nil cnt",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "set / nil element (jolt-bn2p)",
+  {:suite "set / nil element",
    :label "transient disj! removes",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
@@ -744,14 +535,6 @@
    :label "sorted-set? true",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "state / agents (synchronous shim)",
-   :label "send applies",
-   :bucket :divergent,
-   :features [:concurrency/snapshot]}
-  {:suite "state / agents (synchronous shim)",
-   :label "send-off applies",
-   :bucket :divergent,
-   :features [:concurrency/snapshot]}
   {:suite "state / atoms",
    :label "atom? on non-atom",
    :bucket :jvm-error,
@@ -764,14 +547,6 @@
    :label "promise undelivered",
    :bucket :timeout,
    :features [:perf/unbounded]}
-  {:suite "transient / assoc! odd args throw",
-   :label "map dangling key",
-   :bucket :throws-mismatch,
-   :features [:strictness/jolt]}
-  {:suite "transient / assoc! odd args throw",
-   :label "vector dangling",
-   :bucket :throws-mismatch,
-   :features [:strictness/jolt]}
   {:suite "transient / set",
    :label "conj! dedups",
    :bucket :jvm-error,
@@ -804,22 +579,6 @@
    :label "bean is the map",
    :bucket :divergent,
    :features [:host/jvm-interop]}
-  {:suite "untested / JVM-shape stubs (documented jolt behavior)",
-   :label "class keyword",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / JVM-shape stubs (documented jolt behavior)",
-   :label "class number",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / JVM-shape stubs (documented jolt behavior)",
-   :label "class string",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / JVM-shape stubs (documented jolt behavior)",
-   :label "definterface defines",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "untested / JVM-shape stubs (documented jolt behavior)",
    :label "enumeration-seq",
    :bucket :jvm-error,
@@ -848,10 +607,6 @@
    :label "update-proxy",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "aclone vec",
-   :bucket :jvm-error,
-   :features [:host/arrays]}
   {:suite "untested / array stubs (vectors + host buffers)",
    :label "aset-boolean",
    :bucket :jvm-error,
@@ -884,58 +639,10 @@
    :label "aset-short",
    :bucket :jvm-error,
    :features [:host/arrays]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "boolean-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "double-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "float-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "int-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "into-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "long-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "make-array",
-   :bucket :jvm-error,
-   :features [:host/arrays]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "short-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / array stubs (vectors + host buffers)",
-   :label "to-array",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
   {:suite "untested / chunk family (eager equivalents) + cat",
    :label "chunk round-trip",
    :bucket :divergent,
    :features [:host/jvm-interop]}
-  {:suite "untested / ns + REPL machinery",
-   :label "*in* bound",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / ns + REPL machinery",
-   :label "ns-imports empty user",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / primed + division + bit ops",
-   :label "/ ratio-as-double",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
   {:suite "untested / protocols: extend + extends?",
    :label "extend registers",
    :bucket :jvm-error,
@@ -964,22 +671,6 @@
    :label "chars first",
    :bucket :jvm-error,
    :features [:host/jvm-interop]}
-  {:suite "untested / typed coercion views",
-   :label "double",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "untested / typed coercion views",
-   :label "doubles",
-   :bucket :jvm-error,
-   :features [:host/jvm-interop]}
-  {:suite "untested / typed coercion views",
-   :label "float",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "untested / typed coercion views",
-   :label "floats",
-   :bucket :jvm-error,
-   :features [:host/jvm-interop]}
   {:suite "untested / typed coercion views",
    :label "ints",
    :bucket :jvm-error,
@@ -991,16 +682,4 @@
   {:suite "untested / typed coercion views",
    :label "shorts",
    :bucket :jvm-error,
-   :features [:host/jvm-interop]}
-  {:suite "untested / unchecked-* are plain ops",
-   :label "unchecked-char",
-   :bucket :divergent,
-   :features [:host/jvm-interop]}
-  {:suite "untested / unchecked-* are plain ops",
-   :label "unchecked-double",
-   :bucket :divergent,
-   :features [:numerics/double-only]}
-  {:suite "untested / unchecked-* are plain ops",
-   :label "unchecked-float",
-   :bucket :divergent,
-   :features [:numerics/double-only]}]}
+   :features [:host/jvm-interop]}]}