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/docs/plans/A5-priors.md

@@ -0,0 +1,46 @@
+# A5 — Priors database
+
+## 1. Component
+PS+'s non-endocrine "stray": the records of the self — high-salience **Triumphs and Traumas**
+(scar/reward tissue). When a current event structurally matches a prior, it activates and injects
+a large, specific argument into PS+ load.
+
+## 2. Status / certainty
+Structure WORKING (`priors.R`, 63 L). As a *database* (query/decay/persistence), C3.
+
+## 3. Language & location
+R · `src/endocrine/priors.R` (consumed by PS+ A3). Persistence backing → storage (E2/E3) later.
+
+## 4. Does / does-not
+- **Does:** store prior records; return top active priors above a salience threshold; track
+  activation counts; decay salience over time.
+- **Does-not:** aggregate load (A3) or decide; it is memory tissue, queried by PS+.
+
+## 5. Interface contract
+- **Record:** `{ id, type∈{TRAUMA,TRIUMPH}, salience(0..1), payload(str), activation_count }`.
+- `init_priors_state() -> store` · `add_prior(store,id,type,salience,payload) -> store'` ·
+  `get_top_active_priors(store, threshold=?) -> [record] (desc salience)` ·
+  `activate_prior(store,id) -> store'` · `decay_prior(store,id,rate=?) -> store'`.
+
+## 6. Dependencies & stubs
+None upstream. The **match** that activates a prior (structural similarity of current event ↔ prior)
+is upstream of A5 — *stub:* call `activate_prior(id)` directly for tests.
+
+## 7. Invariants / laws
+- **L1 (C5):** type ∈ {TRAUMA, TRIUMPH} only (invalid types error).
+- **L2 (C4):** salience clamped 0..1; top-active sorted descending; only ≥ threshold are "active."
+- **L3 (C4):** activation is tracked; salience decays over time (for migration cycles).
+- **L4 (C1):** threshold + decay-rate constants — refit invariants-first.
+
+## 8. Build steps
+1. Lock the record + L1–L3 as tests. 2. Refit threshold/decay (drop old 0.8 / 0.01 unless re-derived).
+3. Define the **match** interface (how an event activates a prior) — likely semantic, ties to A4/A7 tags.
+4. Add persistence (E2/E3) once storage specs land.
+
+## 9. Tests
+`Rscript src/endocrine/test_*` (PS+ tests exercise priors); add a dedicated priors test for L1–L3.
+
+## 10. Open items
+- The **match** mechanism (event ↔ prior structural similarity) — C1.
+- Persistence backing (VARIANT store E2 vs RAG E3) — C1.
+- Threshold/decay constants (C1).