Quilon v0.9.1 "Towel"

What's Changed

• Replace mut keyword with := operator (mutable bind/assign) by @assapir in #21
• VS Code extension: syntax highlighting + editor tasks by @assapir in #22
• M1: Better human errors (file:line:col + source context) by @assapir in #23
• M1: VS Code extension → TypeScript + publishing pipeline by @assapir in #24
• M1: Unit type $ by @assapir in #25
• M2: In-place field writes + setter methods (:= records) by @assapir in #26
• M1: VS Code extension — $ highlighting + inline diagnostics by @assapir in #27
• M2: User-defined sum types (/ separator) by @assapir in #28
• Switch VS Code extension to pnpm by @assapir in #29
• Extension: Run/Check CodeLens above ^ entry point by @assapir in #30
• Fix extension grammar: multi-char operators (=>, ->, …) highlight as one token by @assapir in #31
• M2: Explicit ad-hoc overloading (operators + Text comparison) by @assapir in #32
• M3: Ranges (infix <-, inclusive, 4<-1 descends) by @assapir in #34
• M3: Text-in-composite codegen (type-oracle side-table) by @assapir in #35
• M3: Closures (= by-value / := by-reference capture) by @assapir in #36
• M3: Guaranteed self-tail-call optimization (loop lowering) by @assapir in #37
• M3: Array methods (map/filter/reduce/each/find/at) by @assapir in #40
• Fix #38: deterministically place libquilon_rt.a for quilon build by @assapir in #41
• M3: ^ entry point receives args:[]Text and env:[][]Text by @assapir in #39
• M3: Remove the for loop (iterate via array methods + recursion) by @assapir in #42
• M3: <- spread operator (array spread + record update) by @assapir in #43
• Fix #44: JIT/AOT argv parity (quilon run args mirror native) by @assapir in #46
• docs: durable ROADMAP + ORCHESTRATION (plan + multi-agent process) by @assapir in #47
• Concrete Result payload typing (Ok/NotOk bind usable values) by @assapir in #53
• Array concatenation via + ([]T + []T → []T, append, prepend) by @assapir in #51
• Fix #33: block-closing > highlights as block punctuation, not error by @assapir in #55
• docs: M7 optimization-levels + example/code-hygiene conventions by @assapir in #59
• Update all dependencies to latest by @assapir in #61
• core.test module (assert / assertEq / assertNotEq / assertOk / assertNotOk) by @assapir in #63
• docs: Design principles (LANGUAGE) + M7 hover-docs (ROADMAP) by @assapir in #62
• Text methods: split/trim/trimStart/trimEnd/replace/contains/indexOf/slice/toUpper/toLower by @assapir in #52
• core.cli: getEnv / hasFlag / getOpt (pure-Quilon argv/env helpers) by @assapir in #66
• Fix #68: per-function codegen state leaked across function emissions (silent miscompilation) by @assapir in #79
• Fix #70: reject refutable sub-patterns in constructor patterns (silent wrong-arm matches) by @assapir in #80
• Fix #71: make && and || short-circuit as documented by @assapir in #81
• Fix #73: implement % (modulo) in codegen by @assapir in #89
• Embed the runtime archive (gzip) in the quilon binary so quilon build works from a distributed binary by @assapir in #90
• Fix exponential argument re-inference in check_call (checker hung on ~25-deep pipelines) by @assapir in #86
• Make all examples self-asserting; simplify examples gate (#56) by @assapir in #91
• Line-first ( / [ / { begins a new statement (fix cross-line call/index/constructor fusion) by @assapir in #92
• Checked array indexing: invalid arr[i] aborts with a clear runtime error by @assapir in #84
• Add Classpath-style runtime-library exception to quilon-rt by @assapir in #94
• Fix: array/range literals in tail-recursive loops overflow the stack (#67) by @assapir in #95
• Fix #76: bound parser recursion depth (deep nesting fails loud, no stack overflow) by @assapir in #96
• Embed "Built with Quilon" watermark in native binaries by @assapir in #97
• Source-level debugging (Phase 1): DWARF line info + quilon build --debug by @assapir in #102
• Validate & prune Known Limitations by @assapir in #107
• Fix #12/#52: source positions carry file identity, so a module's types stay its own by @assapir in #105
• Fix watermark follow-ups: false strip claim, issue refs, test/polish cleanups by @assapir in #110
• Prepare 0.9.1 release by @assapir in #103

Full Changelog: v0.9.0...v0.9.1