kill: purge old-paradigm dist/platform binaries from tree

The generated C, amalgams, vendored runtime pins, and compiled binaries
from the Claude Code era are removed from the worktree. The El sources
survive; this tree is now source-only for the first-principles rebuild.

Per Principal direction 2026-08-19.

docs/experiments/instruments/instrument/plot/evidence/0001-proof.out

@@ -0,0 +1,20 @@
+POSITIVE — the plot contains exactly what was given to it
+  ok    point count in == point count plotted        5
+  ok    x range preserved                            (0.0, 4.0)
+  ok    y range preserved                            (5.0, 40.0)
+  ok    final point not dropped/sorted               (4.0, 5.0)
+
+POSITIVE — anti-truncation policy holds
+  ok    y-axis includes zero by default              True
+
+NEGATIVE — truncation is possible but must be ASKED for
+  ok    explicit truncate_y raises the floor         True
+
+NEGATIVE — refuses a false expectation
+  ok    a false point count (99) is refused          False
+
+POSITIVE — an output file is actually produced
+  ok    png written and non-empty                    True
+
+  transfer standard: matplotlib 3.10.8
+  PROVEN — 8 checks, 0 failed