Convert all API endpoint URLs to SX expression format

Every URL at sx-web.org now uses bracketed SX expressions — pages AND
API endpoints. defhandler :path values, sx-get/sx-post/sx-delete attrs,
code examples, and Python route decorators all converted.

- Add SxAtomConverter to handlers.py for parameter matching inside
  expression URLs (e.g. /(api.(item.<sx:item_id>)))
- Convert ~50 defhandler :path values in ref-api.sx and examples.sx
- Convert ~90 sx-get/sx-post/sx-delete URLs in reference.sx, examples.sx
- Convert ~30 code example URLs in examples-content.sx
- Convert ~30 API URLs in pages.py (Python string code examples)
- Convert ~70 page navigation URLs in pages.py
- Convert 7 Python route decorators in routes.py
- Convert ~10 reactive API URLs in marshes.sx
- Add API redirect patterns to sx_router.py (301 for old paths)
- Remove /api/ skip in app.py redirects (old API paths now redirect)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sx/sx/handlers/examples.sx

@@ -55,7 +55,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-click
-  :path "/geography/hypermedia/examples/api/click"
+  :path "/(geography.(hypermedia.(example.(api.click))))"
   :method :get
   :returns "element"
   (&key)
@@ -73,7 +73,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-form
-  :path "/geography/hypermedia/examples/api/form"
+  :path "/(geography.(hypermedia.(example.(api.form))))"
   :method :post
   :csrf false
   :returns "element"
@@ -92,7 +92,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-poll
-  :path "/geography/hypermedia/examples/api/poll"
+  :path "/(geography.(hypermedia.(example.(api.poll))))"
   :method :get
   :returns "element"
   (&key)
@@ -113,7 +113,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-delete
-  :path "/geography/hypermedia/examples/api/delete/<item_id>"
+  :path "/(geography.(hypermedia.(example.(api.(delete.<sx:item_id>)))))"
   :method :delete
   :csrf false
   :returns "element"
@@ -130,7 +130,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-edit-form
-  :path "/geography/hypermedia/examples/api/edit"
+  :path "/(geography.(hypermedia.(example.(api.edit))))"
   :method :get
   :returns "element"
   (&key)
@@ -143,7 +143,7 @@
         :text (str "(~inline-edit-form :value \"" value "\")")))))
 
 (defhandler ex-edit-save
-  :path "/geography/hypermedia/examples/api/edit"
+  :path "/(geography.(hypermedia.(example.(api.edit))))"
   :method :post
   :csrf false
   :returns "element"
@@ -157,7 +157,7 @@
         :text (str "(~inline-view :value \"" value "\")")))))
 
 (defhandler ex-edit-cancel
-  :path "/geography/hypermedia/examples/api/edit/cancel"
+  :path "/(geography.(hypermedia.(example.(api.edit-cancel))))"
   :method :get
   :returns "element"
   (&key)
@@ -175,7 +175,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-oob
-  :path "/geography/hypermedia/examples/api/oob"
+  :path "/(geography.(hypermedia.(example.(api.oob))))"
   :method :get
   :returns "element"
   (&key)
@@ -195,7 +195,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-lazy
-  :path "/geography/hypermedia/examples/api/lazy"
+  :path "/(geography.(hypermedia.(example.(api.lazy))))"
   :method :get
   :returns "element"
   (&key)
@@ -213,7 +213,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-scroll
-  :path "/geography/hypermedia/examples/api/scroll"
+  :path "/(geography.(hypermedia.(example.(api.scroll))))"
   :method :get
   :returns "element"
   (&key)
@@ -227,7 +227,7 @@
           (range start (+ start 5)))
         (if (<= (+ pg 1) 6)
           (div :id "scroll-sentinel"
-            :sx-get (str "/geography/hypermedia/examples/api/scroll?page=" (+ pg 1))
+            :sx-get (str "/(geography.(hypermedia.(example.(api.scroll))))?page=" (+ pg 1))
             :sx-trigger "intersect once"
             :sx-target "#scroll-items"
             :sx-swap "beforeend"
@@ -244,7 +244,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-progress-start
-  :path "/geography/hypermedia/examples/api/progress/start"
+  :path "/(geography.(hypermedia.(example.(api.progress-start))))"
   :method :post
   :csrf false
   :returns "element"
@@ -261,7 +261,7 @@
           :text (str "(~progress-status :percent 0 :job-id \"" job-id "\")"))))))
 
 (defhandler ex-progress-status
-  :path "/geography/hypermedia/examples/api/progress/status"
+  :path "/(geography.(hypermedia.(example.(api.progress-status))))"
   :method :get
   :returns "element"
   (&key)
@@ -282,7 +282,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-search
-  :path "/geography/hypermedia/examples/api/search"
+  :path "/(geography.(hypermedia.(example.(api.search))))"
   :method :get
   :returns "element"
   (&key)
@@ -304,7 +304,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-validate
-  :path "/geography/hypermedia/examples/api/validate"
+  :path "/(geography.(hypermedia.(example.(api.validate))))"
   :method :get
   :returns "element"
   (&key)
@@ -331,7 +331,7 @@
           :text (nth result 1))))))
 
 (defhandler ex-validate-submit
-  :path "/geography/hypermedia/examples/api/validate/submit"
+  :path "/(geography.(hypermedia.(example.(api.validate-submit))))"
   :method :post
   :csrf false
   :returns "element"
@@ -347,7 +347,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-values
-  :path "/geography/hypermedia/examples/api/values"
+  :path "/(geography.(hypermedia.(example.(api.values))))"
   :method :get
   :returns "element"
   (&key)
@@ -367,7 +367,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-reset-submit
-  :path "/geography/hypermedia/examples/api/reset-submit"
+  :path "/(geography.(hypermedia.(example.(api.reset-submit))))"
   :method :post
   :csrf false
   :returns "element"
@@ -387,7 +387,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-editrow-form
-  :path "/geography/hypermedia/examples/api/editrow/<row_id>"
+  :path "/(geography.(hypermedia.(example.(api.(editrow.<sx:row_id>)))))"
   :method :get
   :returns "element"
   (&key row-id)
@@ -402,7 +402,7 @@
           :text (str "(~edit-row-form :id \"" (get row "id") "\" ...)"))))))
 
 (defhandler ex-editrow-save
-  :path "/geography/hypermedia/examples/api/editrow/<row_id>"
+  :path "/(geography.(hypermedia.(example.(api.(editrow.<sx:row_id>)))))"
   :method :post
   :csrf false
   :returns "element"
@@ -420,7 +420,7 @@
         :text (str "(~edit-row-view :id \"" row-id "\" ...)")))))
 
 (defhandler ex-editrow-cancel
-  :path "/geography/hypermedia/examples/api/editrow/<row_id>/cancel"
+  :path "/(geography.(hypermedia.(example.(api.(editrow-cancel.<sx:row_id>)))))"
   :method :get
   :returns "element"
   (&key row-id)
@@ -439,7 +439,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-bulk
-  :path "/geography/hypermedia/examples/api/bulk"
+  :path "/(geography.(hypermedia.(example.(api.bulk))))"
   :method :post
   :csrf false
   :returns "element"
@@ -476,7 +476,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-swap-log
-  :path "/geography/hypermedia/examples/api/swap-log"
+  :path "/(geography.(hypermedia.(example.(api.swap-log))))"
   :method :post
   :csrf false
   :returns "element"
@@ -500,7 +500,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-dashboard
-  :path "/geography/hypermedia/examples/api/dashboard"
+  :path "/(geography.(hypermedia.(example.(api.dashboard))))"
   :method :get
   :returns "element"
   (&key)
@@ -530,7 +530,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-tabs
-  :path "/geography/hypermedia/examples/api/tabs/<tab>"
+  :path "/(geography.(hypermedia.(example.(api.(tabs.<sx:tab>)))))"
   :method :get
   :returns "element"
   (&key tab)
@@ -551,7 +551,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-animate
-  :path "/geography/hypermedia/examples/api/animate"
+  :path "/(geography.(hypermedia.(example.(api.animate))))"
   :method :get
   :returns "element"
   (&key)
@@ -571,7 +571,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-dialog
-  :path "/geography/hypermedia/examples/api/dialog"
+  :path "/(geography.(hypermedia.(example.(api.dialog))))"
   :method :get
   :returns "element"
   (&key)
@@ -584,7 +584,7 @@
       :text "(~dialog-modal :title \"Confirm Action\" :message \"...\")")))
 
 (defhandler ex-dialog-close
-  :path "/geography/hypermedia/examples/api/dialog/close"
+  :path "/(geography.(hypermedia.(example.(api.dialog-close))))"
   :method :get
   :returns "element"
   (&key)
@@ -598,7 +598,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-keyboard
-  :path "/geography/hypermedia/examples/api/keyboard"
+  :path "/(geography.(hypermedia.(example.(api.keyboard))))"
   :method :get
   :returns "element"
   (&key)
@@ -617,7 +617,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-pp-edit-all
-  :path "/geography/hypermedia/examples/api/putpatch/edit-all"
+  :path "/(geography.(hypermedia.(example.(api.putpatch-edit-all))))"
   :method :get
   :returns "element"
   (&key)
@@ -631,7 +631,7 @@
         :text (str "(~pp-form-full :name \"" (get p "name") "\" ...)")))))
 
 (defhandler ex-pp-put
-  :path "/geography/hypermedia/examples/api/putpatch"
+  :path "/(geography.(hypermedia.(example.(api.putpatch))))"
   :method :put
   :csrf false
   :returns "element"
@@ -648,7 +648,7 @@
         :text (str "(~pp-view :name \"" name "\" ...)")))))
 
 (defhandler ex-pp-cancel
-  :path "/geography/hypermedia/examples/api/putpatch/cancel"
+  :path "/(geography.(hypermedia.(example.(api.putpatch-cancel))))"
   :method :get
   :returns "element"
   (&key)
@@ -667,7 +667,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-json-echo
-  :path "/geography/hypermedia/examples/api/json-echo"
+  :path "/(geography.(hypermedia.(example.(api.json-echo))))"
   :method :post
   :csrf false
   :returns "element"
@@ -688,7 +688,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-echo-vals
-  :path "/geography/hypermedia/examples/api/echo-vals"
+  :path "/(geography.(hypermedia.(example.(api.echo-vals))))"
   :method :get
   :returns "element"
   (&key)
@@ -705,7 +705,7 @@
             :text (str "(~echo-result :label \"values\" :items (list ...))")))))))
 
 (defhandler ex-echo-headers
-  :path "/geography/hypermedia/examples/api/echo-headers"
+  :path "/(geography.(hypermedia.(example.(api.echo-headers))))"
   :method :get
   :returns "element"
   (&key)
@@ -725,7 +725,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-slow
-  :path "/geography/hypermedia/examples/api/slow"
+  :path "/(geography.(hypermedia.(example.(api.slow))))"
   :method :get
   :returns "element"
   (&key)
@@ -744,7 +744,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-slow-search
-  :path "/geography/hypermedia/examples/api/slow-search"
+  :path "/(geography.(hypermedia.(example.(api.slow-search))))"
   :method :get
   :returns "element"
   (&key)
@@ -764,7 +764,7 @@
 ;; --------------------------------------------------------------------------
 
 (defhandler ex-flaky
-  :path "/geography/hypermedia/examples/api/flaky"
+  :path "/(geography.(hypermedia.(example.(api.flaky))))"
   :method :get
   :returns "element"
   (&key)