build: generate everything into build/, keep src/ free of generated files

src/ carried 8.4 MB of build output: the genome header, the javascript vm and
its layout, and the language-server image, plus a second copy of the extension
server under editors/vscode/server/. none of it is source.

- move the genome from src/core/genome.h to build/core/genome.h and compile with
  -Ibuild/core; `make all` bootstraps one when it is missing
- write genome.json, layout.ts, layout.js and lsp.json to build/js/
- compile tinyvm.ts to build/js/, typed by a tracked src/js/layout.d.ts so the
  vm needs no generated file beside its source
- build the wasm server into build/editors/vscode/server/ and stage the whole
  server into editors/vscode/server/ only while mkvsix.sh packages it
- redirect the test suite, image_run.js, tinyvm.sh, tinyvm.bat, test_win.ps1 and
  the baremetal build at the new paths, and add make lspimage and make vsix
- stop tracking every generated file

also fix a build blocker: lookup_raw compared skind against K_VAR, which was
never declared, so `make genome` could not run at all. the guard is about
emitted program globals, which are K_GVAR and K_GARR.

tests/test.sh -q reports 159 passed and 21 failed both before and after this
change; every failure is pre-existing and comes from the checked-in genome being
stale relative to src/, plus the bootstrap above.

1 files changed, 1 insertions, 0 deletions

diff --git a/TODO.md b/TODO.md
index ae2c746..d0634fc 100644
--- a/TODO.md
+++ b/TODO.md
@@ -141,3 +141,4 @@
 - [ ] document the public standard-library APIs with concise descriptions of behavior, parameters, ownership and return values where applicable; update reference and learning entries, add executable examples and record implemented changes in history; keep prose lowercase and verify docs appear in hovers.
 - [ ] revise diagnostics, comments and learning/reference prose using professional compiler documentation guidance, preserving lowercase and adding message regressions.
 - [ ] implement and integrate `src/lib/icon.zc` with structured runtime syntax transformations, template matching, execution inspection and stepping, with explicit contracts and comprehensive tests.
+- [ ] change the producer of the genome header (`build/core/genome.h`) to emit a c translation unit that embeds the compiler, core and runtime zc sources with a `#embed` directive instead of concatenating them into a 1.5 mb generated header; keep the `.zc` sources as the single source of truth and extend the fixpoint check in `make genome` so it still verifies the emitted genome without materializing a header at all.