docs: align version references with jRegTab 0.4.1

jRegTab 0.4.1 contains only Java build changes over 0.4.0 (compiler
plugin fix, jackson test-dep bump, Central publishing config), so
pyRegTab 0.2.0 parity extends to it unchanged:

- README: state parity with 0.4.1; note the differential run used
  v0.4.0 whose Java sources are identical in v0.4.1
- docs/index.md: fix stale status line (0.1.0/Apache-2.0 -> 0.2.0/MIT)
- ide/vscode/package.json: correct license to MIT
- re-pin conformance/UPSTREAM and grammar/UPSTREAM to v0.4.1 (7a9b789);
  pinned files are byte-identical between tags, sha256 unchanged

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: shigarov

README.md

@@ -16,9 +16,10 @@ and interprets the match into a relational **recordset**:
 TableSyntax → RtlCompiler/TablePattern → AtpMatcher → TableInterpreter → Recordset
 ```
 
-**pyRegTab 0.2.0 ≙ jRegTab 0.4.0** (same API, same semantics, same test
-corpus), including the embedded RTL DSL `pyregtab.dsl` — a port of jRegTab's
-`ru.icc.regtab.dsl` (added upstream in jRegTab 0.3.0).
+**pyRegTab 0.2.0 ≙ jRegTab 0.4.1** (same API, same semantics, same test
+corpus; jRegTab 0.4.1 changes only the Java build over 0.4.0), including the
+embedded RTL DSL `pyregtab.dsl` — a port of jRegTab's `ru.icc.regtab.dsl`
+(added upstream in jRegTab 0.3.0).
 
 ## Installation
 
@@ -161,7 +162,8 @@ Rust (`pyregtab._core`, built with [PyO3](https://pyo3.rs) and
 smoke test against the native core alone. Differential testing against the
 Java reference (`tools/differential.py` + `tools/RecordsetDumpMain.java`)
 compares recordsets cell-by-cell on all 750 task variants — zero
-mismatches against jRegTab v0.4.0.
+mismatches against jRegTab v0.4.0 (whose Java sources are unchanged in
+v0.4.1).
 
 ## IDE support
 

conformance/UPSTREAM

@@ -1,3 +1,3 @@
-commit: f3b99e8d313d8726504c58bfd3dd014a3111300f
-tag: v0.4.0
+commit: 7a9b78974cc88c872bc994d6d38c69e810828ea6
+tag: v0.4.1
 path: conformance/

docs/index.md

@@ -109,4 +109,4 @@ Requires **Python 3.10+**; binary wheels for Windows, Linux, and macOS.
 ---
 
 !!! note "Status"
-    Current release: **0.1.0** (feature parity with jRegTab 0.4.0) · License: **Apache-2.0** · [PyPI](https://pypi.org/project/pyregtab/) · [GitHub](https://github.com/regtab/pyregtab)
+    Current release: **0.2.0** (feature parity with jRegTab 0.4.1) · License: **MIT** · [PyPI](https://pypi.org/project/pyregtab/) · [GitHub](https://github.com/regtab/pyregtab)

grammar/UPSTREAM

@@ -1,4 +1,4 @@
-commit: f3b99e8d313d8726504c58bfd3dd014a3111300f
-tag: v0.4.0
+commit: 7a9b78974cc88c872bc994d6d38c69e810828ea6
+tag: v0.4.1
 path: src/main/antlr4/ru/icc/regtab/rtl/RTL.g4
 sha256: 4fffbdf3f2dcb13935b8f062b5c6c55321de08cf130a4a28fa0845f5b48d68c0

ide/vscode/package.json

@@ -4,7 +4,7 @@
   "description": "Syntax highlighting for RTL — the Regular Table Language of the RegTab project — in .rtl files and inside Python string literals passed to RtlCompiler.compile(...).",
   "version": "0.1.0",
   "publisher": "regtab",
-  "license": "Apache-2.0",
+  "license": "MIT",
   "repository": {
     "type": "git",
     "url": "https://github.com/regtab/pyregtab.git",