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/channel-cli.lisp

@@ -1,16 +1,3 @@
-(in-package :passepartout)
-
-(defun channel-cli-input (text)
-  "Processes raw text from the command line."
-  (inject-stimulus (list :type :EVENT 
-                         :payload (list :sensor :user-input :text text) 
-                         :meta (list :source :CLI))))
-
-(defskill :passepartout-channel-cli
-  :priority 100
-  :trigger (lambda (ctx) (eq (getf (getf ctx :meta) :source) :CLI))
-  :deterministic (lambda (action ctx) (declare (ignore ctx)) action))
-
 (eval-when (:compile-toplevel :load-toplevel :execute)
   (ql:quickload :fiveam :silent t))
 
@@ -33,3 +20,16 @@
 (handler-case
     (progn (channel-cli-input "test-load") (log-message "CLI: Load-time test OK"))
   (error (c) (log-message "CLI: Load-time test FAILED: ~a" c)))
+
+(in-package :passepartout)
+
+(defun channel-cli-input (text)
+  "Processes raw text from the command line."
+  (stimulus-inject (list :type :EVENT 
+                         :payload (list :sensor :user-input :text text) 
+                         :meta (list :source :CLI))))
+
+(defskill :passepartout-channel-cli
+  :priority 100
+  :trigger (lambda (ctx) (eq (getf (getf ctx :meta) :source) :CLI))
+  :deterministic (lambda (action ctx) (declare (ignore ctx)) action))