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/v2/experiments/evidence/cycles/02-seven-tables-and-a-shipped-defect/instruments/run-oracle.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# run-oracle.sh <probe-binary> — run the 20-literal probe and check it against
+# the independent hashlib oracle. Single-line-safe wrapper: capture.sh records
+# commands with printf '%s\n' "$*", so a multi-line command corrupts MANIFEST.tsv.
+set -uo pipefail
+"$1" | "$(dirname "$0")/verify-hashes.py"

docs/v2/experiments/evidence/cycles/02-seven-tables-and-a-shipped-defect/instruments/verify-hashes.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+"""Independent oracle for cycle 02.
+
+Reads the 20-literal probe's stdout and checks every reported SHA-256 against
+Python's hashlib. The El runtime is the system under test; hashlib is the
+reference. Also counts how many literals hashed as the EMPTY STRING, which is
+the signature of el_input_len returning 0.
+"""
+import sys, hashlib
+EMPTY = hashlib.sha256(b"").hexdigest()
+ok = bad = empty = n = 0
+for line in sys.stdin:
+    line = line.strip()
+    if not line:
+        continue
+    parts = dict(p.split("=", 1) for p in line.split(" ") if "=" in p)
+    lit, got = parts["lit"], parts["sha"]
+    n += 1
+    if got == EMPTY:
+        empty += 1
+    exp = hashlib.sha256(lit.encode()).hexdigest()
+    if got == exp:
+        ok += 1
+    else:
+        bad += 1
+        print("MISMATCH lit=%s got=%s expected=%s" % (lit, got, exp))
+print("literals tested              = %d" % n)
+print("correct vs hashlib.sha256    = %d" % ok)
+print("incorrect                    = %d" % bad)
+print("hashed as the EMPTY STRING   = %d" % empty)
+print("failure rate                 = %.0f%%" % (100.0 * empty / n if n else 0))