feat(cli): dsh --dump-config / --dump-default-config print the composed tree

dsh --dump-config and dsh web --dump-config compose the shipped base,
the surface overlay, and the --config or personal overlay — exactly the
layers that surface boots — and print the entry list as YAML without
booting; --dump-default-config stops at the surface overlay so the two
outputs diff to precisely the user layer's effect.

The dump shares the mounting code: the vendored include exports its
patch algorithm as applyEntryPatches() and its !!js dialect as
entryListSchema (logged in vendor/README.md), dsh-app-boot's
renderConfigDump() composes and renders through both (and now imports
the dialect instead of duplicating it), and the CLI adds a thin
dump-config mode. !!js expressions print verbatim; unmatched patches
warn on stderr; boot-only flags are rejected alongside the dump flags.

(cherry picked from commit 1fdbebfa8a5dc7df840d53666320064a7e3dae59)

apps/cli/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write apps/cli/README.md
-README.md: fc5bce195fb10872c605cada1bcb3ed79380265c
-README.zh.md: 2fb1272231abb02e145e5c9925362de27307ca86
+README.md: cf038ad19c631721c7b3182ffe83e75e3837d9ba
+README.zh.md: c790f973a9ab0071253ab161bd8bc7835ebb2e02