Update to new unison platform

.claude/CLAUDE.md

@@ -0,0 +1,99 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## What this is
+
+GCS (GURPS Character Sheet) is a stand-alone, interactive desktop GUI application for building characters for the
+GURPS Fourth Edition tabletop RPG. It is written in Go and uses [Unison](https://github.com/richardwilkes/unison)
+(the author's own GLFW/OpenGL-based toolkit) for the UI and OS integration. Module path: `github.com/richardwilkes/gcs/v5`.
+
+## Critical: GOEXPERIMENT=jsonv2
+
+The code imports `encoding/json/v2` and `encoding/json/jsontext` (~66 files). **Every Go invocation must run with
+`GOEXPERIMENT=jsonv2` in the environment** or it will not compile. `build.sh` exports it and `.vscode/settings.json`
+sets it for the Go tooling, but any manual command must set it explicitly:
+
+```bash
+GOEXPERIMENT=jsonv2 go test ./model/gurps/ -run TestName
+GOEXPERIMENT=jsonv2 go build ./...
+GOEXPERIMENT=jsonv2 go vet ./...
+```
+
+## Common commands
+
+All builds go through `./build.sh` (run `./build.sh -h` for the full list):
+
+| Command | Purpose |
+| --- | --- |
+| `./build.sh` | Default: generate source, then build the Go binary |
+| `./build.sh -G` | Regenerate generated source (enums) |
+| `./build.sh -t` | Run all tests |
+| `./build.sh -r` | Run tests with the race detector |
+| `./build.sh -l` | Run golangci-lint (auto-installs the matching version into `$GOPATH/bin`) |
+| `./build.sh -a` | Everything: gen + build + lint + race tests + package |
+| `./build.sh -d` | Build a distribution (sets the release version) |
+| `./build.sh -i` | Extract the i18n translation template |
+| `./build.sh -p` | Regenerate icons and `packaging.yml` |
+
+Run a single test directly: `GOEXPERIMENT=jsonv2 go test ./model/fxp/ -run TestWeight`.
+
+Linting uses **golangci-lint v2** (config in `.golangci.yml`) with a broad linter set (gocritic all-tags, gosec,
+revive, staticcheck, govet enable-all). Formatting is enforced by **gofumpt (extra-rules) + goimports** — plain
+`gofmt` output will not pass.
+
+## Architecture
+
+The codebase has a strict **model / UI split**:
+
+- **`model/`** — all domain logic and business rules, no UI dependencies.
+  - **`model/gurps/`** — the heart of the application (~140 files). `Entity` (the character) is the root aggregate;
+    its children are the `Node[T]` types: `Trait`, `TraitModifier`, `Skill`, `Spell`, `Equipment`,
+    `EquipmentModifier`, `Note`, `Weapon`, `ConditionalModifier`. `node.go` defines the generic `Node[T NodeTypes]`
+    interface these all implement — these are the tree/table rows shown in the UI. Features, prerequisites, and
+    bonuses are also modeled here.
+  - **`model/fxp/`** — fixed-point decimal math (`fxp.Int`, backed by toolbox `fixed64`), plus `Length` and `Weight`
+    with units. **All game numbers use `fxp.Int`, never `float64`.**
+  - **`model/jio/`** — JSON load/save and data versioning. `CurrentDataVersion = 5`, `MinimumDataVersion = 2`; all GCS
+    data files share one version number.
+  - Other support packages: `criteria`, `nameable`, `colors`, `fonts`, `paper`, `kinds`.
+- **`ux/`** — the UI layer (~150 files) built on Unison. Heavily depends on `model/gurps`. The workspace is a
+  dock-based UI of `*Dockable` panels (character sheets, templates, settings, PDF/markdown viewers). `ux.Start()` is
+  the GUI entry point and never returns.
+- **`main.go`** — entry point. Configures app identity via `early.Configure()`, then either runs a headless CLI mode
+  (`--convert`, `--sync`, `--text` export) or launches the GUI through `ux.Start()`.
+- **`cmd/`** — auxiliary tools, not part of the app binary: `enumgen` (enum code generation), `genpkg` (icons +
+  packaging), `pack` (distribution packaging), `prereq-counts`.
+
+## Code generation (enums)
+
+Enums are code-generated. The canonical list of all enums lives in the `allEnums` variable in
+[cmd/enumgen/main.go](cmd/enumgen/main.go). For each enum there is a hand-written file (e.g.
+`model/gurps/enums/difficulty/level.go`, holding custom methods) and a generated companion
+`*_gen.go` file (constants, `String()`, marshaling — marked `// Code generated ... DO NOT EDIT`). Most enums live in
+their own package under `model/gurps/enums/<name>/`.
+
+To add or change an enum: edit `allEnums` in `cmd/enumgen/main.go` (and the hand-written method file if needed), then
+run `./build.sh -G`. **Regeneration deletes every `*_gen.go` file in the repo and rewrites it**, so never hand-edit a
+`_gen.go` file.
+
+## Libraries & data files
+
+Character/library content lives in **libraries** — Git repositories (a master library, the user library, and add-on
+libraries) that can be browsed and updated from within the app via go-git ([library.go](model/gurps/library.go),
+[git_latest.go](model/gurps/git_latest.go)). Individual data nodes can be linked to a library "source" and synced
+(`GetSource`/`SyncWithSource`, `srcstate` enum). File extensions (`.gcs` sheet, `.gct` template, `.adq` traits, `.skl`
+skills, `.spl` spells, `.eqp` equipment, etc.) are defined in [file_type.go](model/gurps/file_type.go).
+
+## Scripting
+
+Calculated values can be driven by embedded JavaScript via [goja](https://github.com/dop251/goja). The bridge lives
+in `model/gurps/scripting*.go`, which exposes the entity, attributes, skills, spells, traits, equipment, weapons, and
+dice to scripts.
+
+## Conventions
+
+- Every Go source file begins with the MPL 2.0 copyright header (see any existing `.go` file); new files must include it.
+- User-facing strings are wrapped in `i18n.Text(...)`; `./build.sh -i` extracts the translation template.
+- The toolbox v2 library (`xos`, `errs`, `i18n`, `tid`, `fixed64`, …) is used pervasively for cross-platform and
+  utility needs — prefer it over rolling your own.

.vscode/launch.json

@@ -8,8 +8,12 @@
 			"name": "GCS",
 			"type": "go",
 			"request": "launch",
-			"mode": "auto",
-			"program": ".",
+			"mode": "exec",
+			"preLaunchTask": "build GCS",
+			"program": "${workspaceFolder}/gcs",
+			"windows": {
+				"program": "${workspaceFolder}/gcs.exe"
+			},
 			"args": [
 				"-console"
 			]

.vscode/tasks.json

@@ -0,0 +1,23 @@
+{
+	"version": "2.0.0",
+	"tasks": [
+		{
+			// Build GCS so the debugger can attach to a binary that launches and renders correctly. Paths are relative
+			// (with cwd set below) so they survive whatever shell the task runs in.
+			//
+			// Windows: force Go's internal linker (-linkmode=internal). With the default external mingw linker, large
+			// unstripped (debug-info) binaries are rejected by the Windows loader with error 193 ("not a valid Win32
+			// application") -- see golang/go#75077. Stripping (-s -w) also avoids it but would discard the DWARF info
+			// dlv needs. Internal linking keeps full debug info AND produces a loadable binary. macOS/Linux don't hit
+			// this bug (and darwin cgo can't be internally linked), so they use a plain build.
+			"label": "build GCS",
+			"type": "shell",
+			"command": "./build.sh",
+			"options": {
+				"cwd": "${workspaceFolder}"
+			},
+			"group": "build",
+			"problemMatcher": ["$go"]
+		}
+	]
+}

build.sh

@@ -3,11 +3,10 @@ set -eo pipefail
 
 trap 'echo -e "\033[33;5mBuild failed on build.sh:$LINENO\033[0m"' ERR
 
-export GOEXPERIMENT=jsonv2
+export GOEXPERIMENT=jsonv2,nodwarf5
 
 # Process args
 RELEASE="0.0"
-EXTRA_LD_FLAGS="-s -w"
 for arg in "$@"; do
 	case "$arg" in
 	--all | -a)
@@ -50,6 +49,7 @@ for arg in "$@"; do
 		SOMETHING=1
 		;;
 	--dist | -d)
+		EXTRA_LD_FLAGS="-s -w"
 		EXTRA_BUILD_FLAGS="-a -trimpath"
 		RELEASE="5.42.0"
 		PACKAGER=1
@@ -88,9 +88,6 @@ if [ "$SOMETHING"x != "1x" ]; then
 	BUILD_GO=1
 fi
 
-LDFLAGS_ALL="-X github.com/richardwilkes/toolbox/v2/xos.AppVersion=$RELEASE $EXTRA_LD_FLAGS"
-STD_FLAGS="-v -buildvcs=true $EXTRA_BUILD_FLAGS"
-
 case $(uname -s) in
 Darwin*)
 	if [ "$(uname -p)" == "arm" ]; then
@@ -99,11 +96,14 @@ Darwin*)
 		export MACOSX_DEPLOYMENT_TARGET=10.15
 	fi
 	;;
-MINGW*)
-	LDFLAGS_ALL="$LDFLAGS_ALL -H windowsgui"
+MINGW*|MSYS*)
+	EXTRA_LD_FLAGS="$EXTRA_LD_FLAGS -H windowsgui"
 	;;
 esac
 
+LDFLAGS_ALL="-X github.com/richardwilkes/toolbox/v2/xos.AppVersion=$RELEASE $EXTRA_LD_FLAGS"
+STD_FLAGS="-v -buildvcs=true $EXTRA_BUILD_FLAGS"
+
 # Generate the source
 if [ "$BUILD_GEN"x == "1x" ]; then
 	echo -e "\033[33mGenerating...\033[0m"

cmd/enumgen/enum.go.tmpl

@@ -1,4 +1,4 @@
-// Copyright (c) 1998-2025 by Richard A. Wilkes. All rights reserved.
+// Copyright (c) 1998-2026 by Richard A. Wilkes. All rights reserved.
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, version 2.0. If a copy of the MPL was not distributed with

cmd/enumgen/main.go

@@ -1,4 +1,4 @@
-// Copyright (c) 1998-2025 by Richard A. Wilkes. All rights reserved.
+// Copyright (c) 1998-2026 by Richard A. Wilkes. All rights reserved.
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, version 2.0. If a copy of the MPL was not distributed with

cmd/genpkg/main.go

@@ -1,4 +1,4 @@
-// Copyright (c) 1998-2025 by Richard A. Wilkes. All rights reserved.
+// Copyright (c) 1998-2026 by Richard A. Wilkes. All rights reserved.
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, version 2.0. If a copy of the MPL was not distributed with
@@ -24,6 +24,7 @@ import (
 	"github.com/richardwilkes/gcs/v5/svg"
 	"github.com/richardwilkes/gcs/v5/ux"
 	"github.com/richardwilkes/toolbox/v2/errs"
+	"github.com/richardwilkes/toolbox/v2/uti"
 	"github.com/richardwilkes/toolbox/v2/ximage"
 	"github.com/richardwilkes/toolbox/v2/xos"
 	"github.com/richardwilkes/toolbox/v2/xyaml"
@@ -71,19 +72,19 @@ func main() {
 		if one.IsSpecial {
 			continue
 		}
-		extensions := make([]string, len(one.Extensions))
-		for i, ext := range one.Extensions {
+		extensions := make([]string, len(one.UTI.Extensions))
+		for i, ext := range one.UTI.Extensions {
 			extensions[i] = ext[1:]
 		}
 		data := packager.FileData{
 			Name:       one.Name,
 			Icon:       "pkgicons/" + extensions[0] + "_doc.png",
 			Role:       "Viewer",
 			Rank:       "Alternate",
-			UTI:        one.UTI,
-			ConformsTo: one.ConformsTo,
+			UTI:        one.UTI.UTI,
+			ConformsTo: extractConformsTo(one.UTI),
 			Extensions: extensions,
-			MimeTypes:  one.MimeTypes,
+			MimeTypes:  one.UTI.MimeTypes,
 		}
 		if one.IsGCSData {
 			data.Role = "Editor"
@@ -113,7 +114,7 @@ func main() {
 					overlay, err = svg.CreateImageFromSVG(fi.SVG, 512)
 					xos.ExitIfErr(err)
 					var f *os.File
-					f, err = os.Create(filepath.Join(iconsPath, fi.Extensions[0][1:]+"_doc.png"))
+					f, err = os.Create(filepath.Join(iconsPath, fi.UTI.Extensions[0][1:]+"_doc.png"))
 					xos.ExitIfErr(err)
 					xos.ExitIfErr(errs.Wrap(png.Encode(f, ximage.Stack(docImg, overlay))))
 					xos.ExitIfErr(f.Close())
@@ -123,3 +124,11 @@ func main() {
 		}),
 	)
 }
+
+func extractConformsTo(u *uti.DataType) []string {
+	list := make([]string, len(u.Parents))
+	for i, p := range u.Parents {
+		list[i] = p.UTI
+	}
+	return list
+}

cmd/pack/main.go

@@ -1,4 +1,4 @@
-// Copyright (c) 1998-2025 by Richard A. Wilkes. All rights reserved.
+// Copyright (c) 1998-2026 by Richard A. Wilkes. All rights reserved.
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, version 2.0. If a copy of the MPL was not distributed with

cmd/prereq-counts/main.go

@@ -1,4 +1,4 @@
-// Copyright (c) 1998-2025 by Richard A. Wilkes. All rights reserved.
+// Copyright (c) 1998-2026 by Richard A. Wilkes. All rights reserved.
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, version 2.0. If a copy of the MPL was not distributed with

debug/profile.go

@@ -1,4 +1,4 @@
-// Copyright (c) 1998-2025 by Richard A. Wilkes. All rights reserved.
+// Copyright (c) 1998-2026 by Richard A. Wilkes. All rights reserved.
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, version 2.0. If a copy of the MPL was not distributed with

early/early.go

@@ -1,4 +1,4 @@
-// Copyright (c) 1998-2025 by Richard A. Wilkes. All rights reserved.
+// Copyright (c) 1998-2026 by Richard A. Wilkes. All rights reserved.
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, version 2.0. If a copy of the MPL was not distributed with

go.mod

@@ -1,54 +1,50 @@
 module github.com/richardwilkes/gcs/v5
 
-go 1.25.3
+go 1.26.0
 
 require (
-	github.com/dop251/goja v0.0.0-20251103141225-af2ceb9156d7
-	github.com/go-git/go-billy/v6 v6.0.0-20251103194943-ae9e5d5b5b37
-	github.com/go-git/go-git/v6 v6.0.0-20251103200709-47b1ed2930c9
+	github.com/dop251/goja v0.0.0-20260607120635-348e6bea910d
+	github.com/go-git/go-billy/v6 v6.0.0-alpha.1
+	github.com/go-git/go-git/v6 v6.0.0-alpha.4
 	github.com/google/uuid v1.6.0
-	github.com/richardwilkes/pdf v1.25.4
-	github.com/richardwilkes/rpgtools v1.11.0
-	github.com/richardwilkes/toolbox/v2 v2.8.0
-	github.com/richardwilkes/unison v0.90.5
+	github.com/richardwilkes/pdf v1.26.12
+	github.com/richardwilkes/rpgtools v1.12.0
+	github.com/richardwilkes/toolbox/v2 v2.13.2
+	github.com/richardwilkes/unison v0.90.6-0.20260614213213-84a4ca546693
 	github.com/rjeczalik/notify v0.9.3
 	github.com/yookoala/realpath v1.0.0
-	github.com/zeebo/xxh3 v1.0.2
-	golang.org/x/image v0.32.0
-	golang.org/x/sys v0.37.0
-	golang.org/x/text v0.30.0
+	github.com/zeebo/xxh3 v1.1.0
+	golang.org/x/image v0.42.0
+	golang.org/x/sys v0.46.0
+	golang.org/x/text v0.38.0
 )
 
 require (
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/OpenPrinting/goipp v1.2.0 // indirect
-	github.com/ProtonMail/go-crypto v1.3.0 // indirect
+	github.com/ProtonMail/go-crypto v1.4.1 // indirect
 	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
-	github.com/cloudflare/circl v1.6.1 // indirect
-	github.com/cyphar/filepath-securejoin v0.6.0 // indirect
-	github.com/dlclark/regexp2 v1.11.5 // indirect
+	github.com/cloudflare/circl v1.6.3 // indirect
+	github.com/dlclark/regexp2/v2 v2.2.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/go-git/gcfg/v2 v2.0.2 // indirect
-	github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71 // indirect
-	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20250301202403-da16c1255728 // indirect
 	github.com/go-sourcemap/sourcemap v2.1.4+incompatible // indirect
-	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
-	github.com/google/pprof v0.0.0-20251007162407-5df77e3f7d1d // indirect
+	github.com/google/pprof v0.0.0-20260604005048-7023385849c0 // indirect
 	github.com/grandcat/zeroconf v1.0.0 // indirect
-	github.com/kevinburke/ssh_config v1.4.0 // indirect
+	github.com/kevinburke/ssh_config v1.6.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
-	github.com/miekg/dns v1.1.68 // indirect
+	github.com/miekg/dns v1.1.72 // indirect
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
-	github.com/pjbgf/sha1cd v0.5.0 // indirect
+	github.com/pjbgf/sha1cd v0.6.0 // indirect
 	github.com/sergi/go-diff v1.4.0 // indirect
 	github.com/tc-hib/winres v0.3.1 // indirect
-	github.com/yuin/goldmark v1.7.13 // indirect
-	golang.org/x/crypto v0.43.0 // indirect
-	golang.org/x/mod v0.29.0 // indirect
-	golang.org/x/net v0.46.0 // indirect
-	golang.org/x/sync v0.17.0 // indirect
-	golang.org/x/term v0.36.0 // indirect
-	golang.org/x/tools v0.38.0 // indirect
+	github.com/yuin/goldmark v1.8.2 // indirect
+	golang.org/x/crypto v0.53.0 // indirect
+	golang.org/x/mod v0.37.0 // indirect
+	golang.org/x/net v0.56.0 // indirect
+	golang.org/x/sync v0.21.0 // indirect
+	golang.org/x/term v0.44.0 // indirect
+	golang.org/x/tools v0.46.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )