Migrate all project files from repo root into prj/<name>/

Moved all 40 existing projects' .prj/.dat files (Layer weights, training
batches, legacy .weights.dat/.test.dat artifacts) from the flat repo root
into their own prj/<name>/ folder via git mv, matching the new path
convention from the previous commit. Filenames are unchanged, only the
directory. Non-project files at root (CLAUDE.md, Makefile, batch/moby
text corpora, the stray Layer.0.training.mat) were left in place.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016K8Gu7Qejd11JbdiHZqYAs

prj/serano2/serano2.Layer.0.bh.dat

@@ -0,0 +1,3 @@
+ARMA_MAT_TXT_FN008
+1 2
+   1.4452391136053036e-01  -1.8150850735694149e-01

prj/serano2/serano2.Layer.0.bv.dat

@@ -0,0 +1,3 @@
+ARMA_MAT_TXT_FN008
+1 3
+  -2.1655604272099679e-01  -4.3210347714966416e-02   2.3198124284671454e-01

prj/serano2/serano2.Layer.0.w.dat

@@ -0,0 +1,5 @@
+ARMA_MAT_TXT_FN008
+3 2
+  -8.8794311227519280e+00   9.2661778321828798e+00
+   4.3215380221087875e-02   4.3211855585177546e-02
+   8.9638080776569868e+00  -9.3832454245134258e+00

prj/serano2/serano2.prj

@@ -0,0 +1,29 @@
+{
+   "stack" : {
+      "layers" : [
+         {
+            "id" : 0,
+            "name" : "Layer",
+            "numContext" : 0,
+            "numHidden" : 2,
+            "numVisibleX" : 3,
+            "numVisibleY" : 1,
+            "rbm" : {
+               "params" : {
+                  "doRaoBlackwell" : 1,
+                  "doSampleBatch" : 0,
+                  "gibbsDoSampleHidden" : 1,
+                  "gibbsDoSampleVisible" : 0,
+                  "learningRate" : 0.10000000000000001,
+                  "miniBatchSize" : 100,
+                  "momentum" : 0.5,
+                  "numEpochs" : 10000,
+                  "numGibbs" : 3,
+                  "weightDecay" : 0.0
+               }
+            }
+         }
+      ],
+      "name" : "serano2"
+   }
+}

prj/serano2/serano2.training.dat

@@ -0,0 +1,6 @@
+ARMA_MAT_TXT_FN008
+4 3
+   0.0000000000000000e+00   0.0000000000000000e+00   1.0000000000000000e+00
+   1.0000000000000000e+00   0.0000000000000000e+00   0.0000000000000000e+00
+   1.0000000000000000e+00   1.0000000000000000e+00   0.0000000000000000e+00
+   0.0000000000000000e+00   1.0000000000000000e+00   1.0000000000000000e+00