Reorg step 1: consolidate repo under core/, drop the mafiabot label

Mechanical structure-only pass (no document/guide content edits):

- Move src/ichor, src/endocrine, and docs/ into core/; the old top-level
  mafiabot_core/ becomes core/. Everything now lives under a single core/ root.
- Drop the "mafiabot" label from the Ada/Alire crate: core.gpr (project Core),
  alire.toml name = "core"; the generated *_config.* regenerate as core_config.*.
- Repoint build-critical wiring only:
  - .claude/skills/run-sica-fondt/smoke.sh (ponyc + Ada + COBOL paths)
  - core/src/endocrine R source()/runner paths and the test glob
  - .github/workflows/ci.yml (working-directory + gpr name)

Verified green: smoke ALL GREEN (Pony Ichor, Ada core crate + tests, COBOL E1
vault); R endocrine 14/0; Octave ETR 26/0/1.

Deferred (reserved for a less-ephemeral doc/guide pass): docmap.yaml, the guide
files and nested AGENTS.md/README prose + now-stale relative links, SOUL.md, and
the deeper ring/storage restructure.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015hmgREHNsxYCuim33yUF2c

core/tests/config_tests.adb

@@ -0,0 +1,54 @@
+pragma SPARK_Mode (Off);  --  test harness uses Ada.Text_IO
+with Ada.Text_IO; use Ada.Text_IO;
+with Config_Loader;
+with Mafiabot_Types; use Mafiabot_Types;
+
+procedure Config_Tests is
+   Fails : Natural := 0;
+
+   procedure Check (Name : String; Cond : Boolean) is
+   begin
+      if Cond then
+         Put_Line ("PASS " & Name);
+      else
+         Put_Line ("FAIL " & Name);
+         Fails := Fails + 1;
+      end if;
+   end Check;
+
+   Store : Config_Loader.Config_Store;
+   St    : Operation_Status;
+
+   Buf : constant String :=
+     "# gen.03 config" & ASCII.LF &
+     "host: localhost"  & ASCII.LF &
+     "port: 8080"       & ASCII.LF &
+     ""                 & ASCII.LF &
+     "name: ada"        & ASCII.LF;
+begin
+   Config_Loader.Load_From_Buffer (Buf, Store, St);
+   Check ("load ok", St = OK);
+   Check ("count = 3", Store.Count = 3);
+
+   declare
+      V : constant Bounded_Text := Config_Loader.Get_Value (Store, "host");
+   begin
+      Check ("host = localhost", To_String (V) = "localhost");
+   end;
+   declare
+      V : constant Bounded_Text := Config_Loader.Get_Value (Store, "port");
+   begin
+      Check ("port = 8080", To_String (V) = "8080");
+   end;
+   declare
+      V : constant Bounded_Text := Config_Loader.Get_Value (Store, "missing");
+   begin
+      Check ("missing key empty", V.Length = 0);
+   end;
+
+   if Fails = 0 then
+      Put_Line ("ALL CONFIG TESTS PASSED");
+   else
+      Put_Line ("CONFIG FAILURES:" & Natural'Image (Fails));
+   end if;
+end Config_Tests;