fix(org-latex): use :around advice on org-latex-table instead of filter

org-export-filter-table-functions timing was unreliable (after! ox-latex
runs too late or filter not called for all table types). Around advice on
org-latex-table is called directly during transcoding, guaranteed to run.
Also switched to with-eval-after-load for more predictable load timing.

config.el

@@ -326,25 +326,26 @@ Bound to cmd+v in org-mode and markdown-mode."
 ;;; ============================================================
 
 ;; LaTeX table export: replace tabular → tabularx{\textwidth}
-;; Filter approach: works on rendered LaTeX string, never touches the org buffer,
-;; so no hook recursion (the old before-processing-hook + insert approach caused
-;; 'max-lisp-eval-depth' via org-element-cache after-change hooks).
-(defun my/org-latex-table-to-tabularx (table _backend _info)
-  "Replace \\begin{tabular} with \\begin{tabularx}{\\textwidth} in LaTeX output."
-  (when (and (stringp table) (string-match "\\\\begin{tabular}" table))
-    (setq table (replace-regexp-in-string
-                 "\\\\begin{tabular}{\\([^}]*\\)}"
-                 "\\\\begin{tabularx}{\\\\textwidth}{\\1}"
-                 table))
-    (setq table (replace-regexp-in-string
-                 "\\\\end{tabular}"
-                 "\\\\end{tabularx}"
-                 table)))
-  table)
+;; Around advice on org-latex-table (more reliable than filter hooks).
+;; No buffer modification → no recursion risk.
+(defun my/org-latex-table-tabularx (orig-fn table contents info)
+  "Wrap org-latex-table output: replace tabular with tabularx{\\textwidth}."
+  (let ((result (funcall orig-fn table contents info)))
+    (when (stringp result)
+      (setq result
+            (replace-regexp-in-string
+             "\\\\begin{tabular}{\\([^}]*\\)}"
+             "\\\\begin{tabularx}{\\\\textwidth}{\\1}"
+             result))
+      (setq result
+            (replace-regexp-in-string
+             "\\\\end{tabular}"
+             "\\\\end{tabularx}"
+             result)))
+    result))
 
-(after! ox-latex
-  (add-to-list 'org-export-filter-table-functions
-               #'my/org-latex-table-to-tabularx)
+(with-eval-after-load 'ox-latex
+  (advice-add 'org-latex-table :around #'my/org-latex-table-tabularx)
   (add-to-list 'org-latex-packages-alist '("" "tabularx")))
 
 ;; Optional: enable booktabs style (horizontal rules in tables)