v0.8.2: cleanup + prose + structure + decomposition + budget + errors

Phase 1 — dedup + hardening (~9 items):
- Remove duplicate *skill-registry* defvar from core-skills
- Merge *backend-registry* into *probabilistic-backends*, delete backend-register
- Remove inject-stimulus alias, standardize on stimulus-inject
- Add pre-eval sandbox (skill-source-scan) blocks restricted symbols before eval
- Remove dead plist-get function; remove duplicate json-alist-to-plist export
- Fix read-framed-message whitespace DoS (4096-iteration max)
- Add *read-eval* nil to dispatcher-approvals-process read-from-string (RCE)
- Add test-op to ASDF; update .asd version 0.4.3→0.7.2

Phase 2 — prose + contracts + reorder:
- Split ROADMAP: 2623→1089 lines (TODO only), CHANGELOG: 260→1528 lines (full DONE history, 14 versions reverse chron)
- Add Contracts + Overview to 6 channel files + embedding-native + programming-standards + symbolic-scope
- Reorder 28 .org files: Contract → Test Suite → Implementation (TDD order)
- Add 7-phase inline prose to think() in core-reason
- Expand USER_MANUAL: 183→461 lines (10 new sections)

Phase 3 — decomposition + export organization:
- Decompose think() into think-assemble-prompt, think-call-llm, think-parse-response orchestrator
- Organize 188 exports into 16 grouped sections by module

Phase 4 — budget enforcement + error protocol:
- Per-session budget enforcement (SESSION_BUDGET_USD env var, budget-exhausted-p, guard in think-call-llm)
- Error condition hierarchy (6 conditions: pipeline-error, llm-error, gate-error, budget-error, protocol-error)
- Restarts in loop-process: skip-signal, use-fallback, abort-pipeline

lisp/symbolic-archivist.lisp

@@ -1,3 +1,41 @@
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (ql:quickload :fiveam :silent t))
+
+(defpackage :passepartout-symbolic-archivist-tests
+  (:use :cl :passepartout)
+  (:export #:archivist-suite))
+
+(in-package :passepartout-symbolic-archivist-tests)
+
+(fiveam:def-suite archivist-suite :description "Verification of the Archivist skill")
+(fiveam:in-suite archivist-suite)
+
+(fiveam:test test-extract-headlines
+  "Contract 1: archivist-extract-headlines parses Org content."
+  (let* ((content (format nil "* My Headline :tag1:tag2:~%Body text here~%* Another Headline"))
+         (headlines (archivist-extract-headlines content)))
+    (fiveam:is (listp headlines))
+    (fiveam:is (>= (length headlines) 1))))
+
+(fiveam:test test-headline-to-filename
+  "Contract 2: archivist-headline-to-filename sanitizes titles."
+  (let ((filename (archivist-headline-to-filename "My Project: Overview")))
+    (fiveam:is (search "my_project_overview" filename :test #'char-equal))
+    (fiveam:is (not (search ":" filename)))))
+
+(fiveam:test test-archivist-create-note
+  "Contract 3: archivist-create-note writes a Zettelkasten note to disk."
+  (let* ((tmp-dir "/tmp/passepartout-archivist-test/")
+         (headline (list :title "Test Note" :content "Some content" :tags '("test" "atomic"))))
+    (uiop:ensure-all-directories-exist (list tmp-dir))
+    (unwind-protect
+         (progn
+           (fiveam:is (eq t (archivist-create-note headline tmp-dir "/tmp/source.org"))
+               "Expected note creation to return T")
+           (fiveam:is (uiop:file-exists-p (merge-pathnames "test_note.org" tmp-dir))
+               "Expected file test_note.org to exist"))
+      (uiop:delete-directory-tree (uiop:ensure-directory-pathname tmp-dir) :validate t))))
+
 (in-package :passepartout)
 
 (in-package :passepartout)
@@ -239,41 +277,3 @@ and dispatches as needed. Called by the deterministic gate."
   :priority 100
   :trigger (lambda (ctx) (eq (getf (getf ctx :payload) :sensor) :heartbeat))
   :deterministic #'archivist-run)
-
-(eval-when (:compile-toplevel :load-toplevel :execute)
-  (ql:quickload :fiveam :silent t))
-
-(defpackage :passepartout-symbolic-archivist-tests
-  (:use :cl :passepartout)
-  (:export #:archivist-suite))
-
-(in-package :passepartout-symbolic-archivist-tests)
-
-(fiveam:def-suite archivist-suite :description "Verification of the Archivist skill")
-(fiveam:in-suite archivist-suite)
-
-(fiveam:test test-extract-headlines
-  "Contract 1: archivist-extract-headlines parses Org content."
-  (let* ((content (format nil "* My Headline :tag1:tag2:~%Body text here~%* Another Headline"))
-         (headlines (archivist-extract-headlines content)))
-    (fiveam:is (listp headlines))
-    (fiveam:is (>= (length headlines) 1))))
-
-(fiveam:test test-headline-to-filename
-  "Contract 2: archivist-headline-to-filename sanitizes titles."
-  (let ((filename (archivist-headline-to-filename "My Project: Overview")))
-    (fiveam:is (search "my_project_overview" filename :test #'char-equal))
-    (fiveam:is (not (search ":" filename)))))
-
-(fiveam:test test-archivist-create-note
-  "Contract 3: archivist-create-note writes a Zettelkasten note to disk."
-  (let* ((tmp-dir "/tmp/passepartout-archivist-test/")
-         (headline (list :title "Test Note" :content "Some content" :tags '("test" "atomic"))))
-    (uiop:ensure-all-directories-exist (list tmp-dir))
-    (unwind-protect
-         (progn
-           (fiveam:is (eq t (archivist-create-note headline tmp-dir "/tmp/source.org"))
-               "Expected note creation to return T")
-           (fiveam:is (uiop:file-exists-p (merge-pathnames "test_note.org" tmp-dir))
-               "Expected file test_note.org to exist"))
-      (uiop:delete-directory-tree (uiop:ensure-directory-pathname tmp-dir) :validate t))))