chore: add changeset for router-only compatibility batch

Author: tannerlinsley

.changeset/tall-radios-turn.md

@@ -0,0 +1,14 @@
+---
+'@tanstack/cli': patch
+'@tanstack/create': patch
+---
+
+Improve CLI compatibility and scaffold behavior for legacy router-first workflows.
+
+- Add safer target directory handling by warning before creating into non-empty folders.
+- Support explicit git initialization control via `--git` and `--no-git`.
+- Restore router-only compatibility mode with file-based routing templates (without Start-dependent add-ons/deployments/starters), while still allowing toolchains.
+- Default `create-tsrouter-app` to router-only compatibility mode.
+- Remove stale `count.txt` ignore entries from base templates.
+
+Also expands starter documentation with clearer creation, maintenance, UI usage, and banner guidance.