fix(v0.2.0): finalize structural integrity and clean boot

- Fixed memory.org source blocks to ensure persistence functions are tangled.
- Improved extract-tangle-target to handle complex Elisp expressions.
- Corrected opencortex.sh initialization paths to prevent setup loops.
- Reordered variable definitions in policy and standards skills to eliminate forward-reference warnings.

skills/org-skill-llm-gateway.org

@@ -1,3 +1,4 @@
+#+PROPERTY: header-args:lisp :tangle (expand-file-name "org-skill-llm-gateway.lisp" (concat (or (getenv "INSTALL_DIR") ".") "/skills"))
 :PROPERTIES:
 :ID:       llm-gateway-skill
 :CREATED:  [2026-04-09 Thu]
@@ -19,7 +20,7 @@ The gateway utilizes a functional dispatch pattern. A single entry point, `execu
 * Phase D: Build (Implementation)
 
 ** Implementation
-#+begin_src lisp :tangle (expand-file-name "org-skill-llm-gateway.lisp" (concat (or (getenv "INSTALL_DIR") ".") "/skills"))
+#+begin_src lisp
 
 (defun get-nested (alist &rest keys)
   "Recursively extracts nested values from an alist, handling both objects and arrays."