core: spec 35-var batch A — 1.11 parsers, map/partition variants, with-redefs, ns fns

Fifteen vars from the spec coverage gap (docs/spec/coverage.md):
parse-long/parse-double/parse-boolean (strict validation; scan-number alone
accepts 0x10), newline, current-time-ms (host clock for time), update-keys/
update-vals (PHM base, collisions last-wins), partitionv/partitionv-all/
splitv-at (lazy seqs of vectors; splitv-at's tail stays a seq, matching the
reference), with-redefs/with-redefs-fn (roots restored on throw), time,
macroexpand (expand-1 to fixpoint), alias/ns-unalias (write BOTH alias stores
— require :as uses string-keyed :imports while ns-aliases reads :aliases;
split filed), ns-publics (symbol-keyed map; publics == interns, no privacy).

Three pre-existing bugs fixed along the way:
- (partition n step pad coll) misparsed pad as the coll and returned ()
- (require 'bare.symbol) rejected — only vector specs were accepted
- analyze-form leaked the interpreted analyzer's ns on a punt: a throw out of
  the analyzer left current-ns=jolt.analyzer and :compile-ns set, so the
  fallback interpretation resolved user vars against the wrong namespace
  (bit (var user-sym) under compile mode)

And one overlay-authoring landmine documented in-code: a 20-coll fn must not
use 30-macros macros (with-redefs-fn's dotimes compiled as a forward ref that
resolved to the macro fn at runtime) — loop/recur instead.

Gate: conformance 316x3 (+14 rows), suite 4324 pass / 78 clean (was 4081/72;
parse_*/update_* files now contribute), baselines raised, all specs+unit,
fixpoint, self-host, sci, staged. Coverage: missing-portable 35 -> 20.

test/integration/clojure-test-suite-test.janet

@@ -43,9 +43,9 @@
 # Raised 4004 -> 4034 / clean 66 -> 67 porting partition-all + repeatedly to the
 # overlay, which required fixing two leniencies (a char is not callable; take
 # validates its count) — correct beyond those fns, so the suite rose broadly.
-(def baseline-pass 4081)
+(def baseline-pass 4324)
 # A file is "clean" when it ran with zero failures AND zero errors.
-(def baseline-clean-files 72)
+(def baseline-clean-files 78)
 # Per-file wall-clock budget (seconds). Normal files finish in well under 1s, so
 # this normally only fires on genuinely-infinite-sequence hangs. It's an env var
 # (JOLT_SUITE_TIMEOUT) so CI — whose runners are slower than a dev machine — can

test/integration/conformance-test.janet

@@ -177,6 +177,22 @@
    ["parse-uuid case ="   "true"  "(= (parse-uuid \"b6883c0a-0342-4007-9966-bc2dfa6b109e\") (parse-uuid \"B6883C0A-0342-4007-9966-BC2DFA6B109E\"))"]
    ["parse-uuid bad nil"  "nil"   "(parse-uuid \"df0993\")"]
    ["uuid as map key"     ":v"    "(get {(parse-uuid \"b6883c0a-0342-4007-9966-bc2dfa6b109e\") :v} (parse-uuid \"b6883c0a-0342-4007-9966-bc2dfa6b109e\"))"]
+
+   ### ---- 1.11 additions + ns fns (spec 35-var batch A) ----
+   ["parse-long"         "42"    "(parse-long \"42\")"]
+   ["parse-long bad"     "nil"   "(parse-long \"4.2\")"]
+   ["parse-double"       "1500.0" "(parse-double \"1.5e3\")"]
+   ["parse-boolean"      "true"  "(parse-boolean \"true\")"]
+   ["update-keys"        "{\"a\" 1}" "(update-keys {:a 1} name)"]
+   ["update-vals"        "{:a 2}" "(update-vals {:a 1} inc)"]
+   ["partitionv pad"     "[[1 2] [3 :p]]" "(partitionv 2 2 [:p] [1 2 3])"]
+   ["partition pad"      "[[0 1 2 3] [4 5 6 7] [8 9 :a]]" "(partition 4 4 [:a] (range 10))"]
+   ["splitv-at"          "[[1 2] [3 4]]" "(splitv-at 2 [1 2 3 4])"]
+   ["with-redefs"        "[42 1]" "(do (defn cwr [] 1) [(with-redefs [cwr (fn [] 42)] (cwr)) (cwr)])"]
+   ["time returns value" "3"     "(time (+ 1 2))"]
+   ["macroexpand"        "true"  "(= (quote if) (first (macroexpand (quote (when-not false 1)))))"]
+   ["require bare symbol" "\"a,b\"" "(do (require (quote clojure.string)) (clojure.string/join \",\" [\"a\" \"b\"]))"]
+   ["ns-publics lookup"  "true"  "(do (def cnp 7) (some? (get (ns-publics (quote user)) (quote cnp))))"]
    ["macroexpand-1 when" "2"     "(count (rest (macroexpand-1 (quote (when true 1)))))"]
 
    ### ---- HIGH: aliased namespace calls ----