fix(cli): map @deepseek-ai/dsh-tui/prompt to source in tsconfig paths

The tui.cordis.yml entry for @deepseek-ai/dsh-tui/prompt had no tsconfig
paths mapping: the @deepseek-ai/dsh-* wildcard substitutes tui/prompt whole
into nonexistent candidates, so the tsx source launch fell back to package
exports and required built lib/prompt.js. pnpm dsh failed at startup on
every clean tree (fresh worktrees) with 'plugin(s) failed to load'.

tsconfig.base.json

@@ -58,6 +58,7 @@
       "@deepseek-ai/dsh-llm/brand": ["./packages/llm/llm/src/brand.ts"],
       "@deepseek-ai/dsh-llm/message": ["./packages/llm/llm/src/message.ts"],
       "@deepseek-ai/dsh-commands/brand": ["./packages/ui/commands/src/brand.ts"],
+      "@deepseek-ai/dsh-tui/prompt": ["./packages/ui/tui/src/prompt.ts"],
       "@deepseek-ai/dsh-tools/presentation": ["./packages/core/tools/src/presentation.ts"],
       "@deepseek-ai/dsh-user-approval/types": ["./packages/ui/user-approval/src/types.ts"],
       "@deepseek-ai/dsh-user-interaction/types": ["./packages/ui/user-interaction/src/types.ts"],