refactor(runtime)!: prefix host primitive tags with tui- (align to Ink, drop *Impl)

The renderer's intrinsic elements were named with bare words (box/text/static/
transform/virtual-text), which collide with the same-named public components: a
template `<box>` PascalCase-resolves to `<Box>` under vue-tsc (no isCustomElement
at the type layer), forcing the BoxImpl/TextImpl/StaticImpl workaround.

Prefix the 5 host elements to `tui-*` (mirroring Ink's `ink-box`/`ink-text`):
the prefix + hyphen keeps them in their own namespace, so the components keep
their real names (Box/Text/Static) with no self-recursion — the *Impl rename is
removed. root/text-leaf/comment stay unprefixed (not template tags, not elements).

Mechanics: renamed the TuiNode discriminant literals + factories first, then let
vue-tsc enumerate all 145 stale `node.type === "box"` comparisons (the type-
driven finder also kept `position: "static"` and the ansi-tokenizer's separate
`type: "text"` union untouched). Updated createElement cases, HOST_TAGS,
the .vue templates, transform.ts h(), and raw `h("box")` host-op tests.

Two non-type-checked contaminations the sed caused were caught by tests and fixed:
- patchProp's `key === "transform"` (the PROP name, not the node type) must stay
  "transform" — the sed wrongly prefixed it, dropping the transform fn (identity).
- text-measure's `token.type === "text"` is an AnsiToken, not a TuiNode — reverted.

BREAKING CHANGE: the internal host element names are now tui-box/tui-text/
tui-virtual-text/tui-static/tui-transform. Public components (Box/Text/Static/
Spacer/Newline/Transform) and their props/types are unchanged; only raw host-op
callers (h("box") -> h("tui-box")) are affected.

vp run ready green: fmt, lint 0/0, vue-tsc, tests (runtime 350, integration 1161,
PTY 129).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/runtime/vite.config.ts

@@ -3,7 +3,11 @@ import vueJsx from "@vitejs/plugin-vue-jsx";
 import Vue from "unplugin-vue/rolldown";
 import VueVite from "unplugin-vue/vite";
 
-const HOST_TAGS = ["box", "text", "virtual-text", "static", "transform"];
+// Host primitive tags carry a `tui-` prefix (mirroring Ink's `ink-box`/`ink-text`):
+// it keeps the renderer's intrinsic elements out of the component namespace so a
+// template `<tui-box>` never collides with the public `<Box>` component (no vue-tsc
+// self-recursion). The hyphen also makes them valid custom-element names.
+const HOST_TAGS = ["tui-box", "tui-text", "tui-virtual-text", "tui-static", "tui-transform"];
 
 export default defineConfig({
   // `VueVite` parses `.vue` SFCs in the TEST/dev graph (unit tests may import the