refactor: split glm.c into colibri.c + 4 header modules

Rename glm.c → colibri.c and extract four self-contained modules
into header-only files (same pattern as st.h/tier.h/grammar.h):

  quant.h      (672 lines) — SIMD matmul kernels, quantization
  sample.h     (143 lines) — RNG, top-p sampling, stop-set
  kv_persist.h (121 lines) — .coli_kv disk persistence
  telemetry.h  (189 lines) — dashboard protocol, stats, usage

Main engine file shrinks from 6588 to 5396 lines (−18%).

Build system: primary target is now colibri$(EXE); `make glm`
remains as a phony alias for backward compat. CI, setup.sh,
coli CLI, and all 10 test files that include the engine are
updated. make check passes (C + Python, 73 tests, zero warnings).

c/tests/bench_dsa_select.c

@@ -24,7 +24,7 @@
  * Run:  make tests/bench_dsa_select && ./tests/bench_dsa_select  (not in TEST_BINS)
  */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 #include <math.h>

c/tests/bench_topp.c

@@ -22,7 +22,7 @@
  * Run:  make tests/bench_topp && ./tests/bench_topp   (not in TEST_BINS -- not a gate)
  */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 #include <math.h>

c/tests/test_dsa_select.c

@@ -31,7 +31,7 @@
  * In-memory only (no scratch files), so it builds clean on the Windows MinGW CI
  * job without the unmerged compat shim. */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 #include <math.h>

c/tests/test_i4_grouped.c

@@ -18,7 +18,7 @@
  * index, a wrong group boundary or a swapped nibble cannot hide under it —
  * those are O(1) relative errors, not O(1e-6). */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 static uint32_t rng_state=0xC0FFEEu;

c/tests/test_idot.c

@@ -7,7 +7,7 @@
  * (sign-trick kernels must treat |−128| as 128 unsigned, not saturate to 127),
  * and random data at qrow_i8's contract (|x| <= 127, w full int8 range). */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 static uint32_t rng_state=0x12345678u;

c/tests/test_kv_alloc.c

@@ -4,7 +4,7 @@
  * arrays twice on the second call -> allocator abort. No model file needed:
  * the CPU path of kv_alloc only reads c->n_layers/kv_lora/qk_rope. */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 int main(void){

c/tests/test_makefile_platform.py

@@ -35,7 +35,7 @@ class MakefilePlatformTests(unittest.TestCase):
         env["PATH"] = ""
 
         result = subprocess.run(
-            [MAKE, "--no-print-directory", "-B", "-n", "glm"],
+            [MAKE, "--no-print-directory", "-B", "-n", "colibri"],
             cwd=C_DIR,
             env=env,
             text=True,
@@ -43,7 +43,7 @@ class MakefilePlatformTests(unittest.TestCase):
             check=True,
         )
 
-        self.assertIn("-o glm.exe", result.stdout)
+        self.assertIn("-o colibri.exe", result.stdout)
         self.assertIn("-fopenmp", result.stdout)
         self.assertIn("-static", result.stdout)
 

c/tests/test_sample_nan.c

@@ -6,7 +6,7 @@
  * iniettato il token scelto e' l'argmax dei FINITI (mai 0 per default), su ogni posizione
  * del NaN inclusa lo[0]; (c) nessun NaN sopravvive in g_pbuf. */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 #include <stdio.h>
 

c/tests/test_stops.c

@@ -20,7 +20,7 @@
  * Defense 2 is what makes this robust against checkpoints we don't control:
  * even with BOTH configs mutilated, a control token cannot leak into a reply. */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 static const char *TOKJSON =

c/tests/test_topp.c

@@ -24,7 +24,7 @@
  * No scratch files: the test runs entirely in memory (no mkdtemp), so it builds clean on
  * the Windows MinGW CI job without the unmerged compat shim (#352). */
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 #include <math.h>

c/tests/test_uring.c

@@ -6,7 +6,7 @@
 #include <string.h>
 #include <unistd.h>
 #define main coli_glm_main_unused
-#include "../glm.c"
+#include "../colibri.c"
 #undef main
 
 static int fail(const char *s){ fprintf(stderr,"FAIL: %s\n",s); return 1; }