feat: rebrand as Hermit — TUI palette, dual glyphs, binary 0.10.0

Ship hermit binary (cst-agent symlink), ~/.config/hermit with legacy fallback,
Hermit color theme and mini crab frames, plus SVG→PUA font build pipeline.

Co-authored-by: Cursor <cursoragent@cursor.com>

CMakeLists.txt

@@ -152,6 +152,7 @@ set(CST_CORE_SOURCES
   src/models.c
   src/model_registry.c
   src/metrics.c
+  src/hermit_glyph.c
   src/net.c
   src/http_srv.c
   src/web_md.c
@@ -257,6 +258,7 @@ else()
 endif()
 
 add_executable(cst-agent ${CST_SOURCES})
+set_target_properties(cst-agent PROPERTIES OUTPUT_NAME hermit)
 add_dependencies(cst-agent sashidown)
 cst_win_exe(cst-agent)