Crucible: Fix Formatting Churn (#5)

RC#1 — build wrote 2-space instead of .editorconfig's 4-space
- editorconfig_format.go: the glob translator escaped {/} as literals, so [*.{json,jsonc}]→indent_size=4 never matched any file and formatting fell back to [*]→2. Implemented real editorconfig brace expansion — {a,b,c} alternation and {n..m} numeric ranges. Nothing is hardcoded; saveLockfile already read .editorconfig, it just got the wrong section.

RC#2 — validate wrote a lockfile (it must be read-only)
- The three registry collectors persisted lockfiles as a side effect of collection; ValidateProject calls collection outside its snapshot guard, so the write leaked. Threaded a persistLocks bool through collectGeneratedRegistryDatasets and the damagetypes/itemprops/racialtypes collectors. Only buildNativeUnchecked (the real build allocator) passes true; validate, discovery, packaging queries, and wiki discovery pass false.

Tests added: editorconfig_glob_test.go (brace match + 4-space via brace glob), registry_readonly_test.go (read-only writes nothing; persist writes allocations).

Reviewed-on: #5
Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
Co-committed-by: vickydotbat <vickydotbat@tutamail.com>

internal/dispatch/dispatch.go

@@ -249,8 +249,10 @@ func usage(w io.Writer) {
 	fmt.Fprintf(w, "  list              list builders (one per line: name<TAB>bin<TAB>summary)\n")
 	fmt.Fprintf(w, "  config [args]     inspect/validate effective configuration\n")
 	fmt.Fprintf(w, "  changelog [args]  generate the release changelog\n")
-	fmt.Fprintf(w, "\nNWN_ROOT must be passed explicitly (env or flag); crucible never guesses\n")
-	fmt.Fprintf(w, "from $HOME. See docs/consumer-contract.md.\n")
+	fmt.Fprintf(w, "\nBuilders read all inputs from the project tree (nwn-tool.yaml + data/); no\n")
+	fmt.Fprintf(w, "NWN install is required. If a builder ever needs an NWN root, it must be\n")
+	fmt.Fprintf(w, "passed explicitly via NWN_ROOT; crucible never guesses from $HOME. See\n")
+	fmt.Fprintf(w, "docs/consumer-contract.md.\n")
 }
 
 func list(w io.Writer) {