Five v0.9 — Harbour + Go fusion language

- Compiler: PP → Lexer → Parser → Analyzer → Gengo pipeline
- Parser: 232/236 (98%) Harbour compatibility, registry-based dispatch
- RTL: 351 Harbour-compatible functions
- RDD: DBF/NTX/CDX engines with Rushmore bitmap optimization
- Go Interop: IMPORT + pkg.Func() + obj:Method() with FastPath (15M calls/sec)
- HB_FUNC API: Full Harbour C API compatible Go bridge
- Concurrency: SPAWN/LAUNCH/GOROUTINE, <-, WATCH, PARALLEL FOR, ASYNC/AWAIT
- Extensions: Multi-return, DEFER, Slice, f-string, Nil-safe ?:, CONST
- Macro Compiler: Runtime AST parsing and evaluation
- Debugger: TUI debugger with source display, breakpoints, stepping
- FRB: Native + Pcode dual mode runtime binary
- Tests: 13 packages ALL PASS

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

examples/dbedit_debug.prg

@@ -0,0 +1,31 @@
+// Minimal debug: just stabilize once and print
+
+FUNCTION Main()
+   LOCAL oBrowse, oCol
+
+   USE "dbf/customer"
+
+   ? "Step 1: USE OK, records:", RecCount()
+
+   oBrowse := TBrowseDB(2, 0, 22, 79)
+   ? "Step 2: TBrowse created"
+
+   oCol := TBColumnNew("ID", {|| FieldGet(1)})
+   oBrowse:addColumn(oCol)
+   ? "Step 3: Column added"
+
+   oCol := TBColumnNew("FIRST", {|| FieldGet(2)})
+   oBrowse:addColumn(oCol)
+   ? "Step 4: Column 2 added, count:", oBrowse:colCount()
+
+   ? "Step 5: Calling stabilize..."
+   oBrowse:stabilize()
+   ? "Step 6: stabilize done"
+
+   ? "Step 7: Calling Inkey..."
+   Inkey(0)
+   ? "Step 8: Inkey returned"
+
+   USE
+   ? "Done!"
+   RETURN NIL