frame allocs: a click is not a frame, a reducer is its dispatch's, a capped push is bounded; ludic.photo at 0

The analysis made every component function a frame root, event handlers (cmp_x_on_delete) too, and
every reducer, whether its action is dispatched every frame or once a trip: a component's 'on'
handlers are no longer roots, and a dispatch is an edge to its action's reducers, so a reducer
counts only when frame code dispatches it. A push into a field declared @max(n) is bounded by the
fence's own check and no longer counted. Maroon Lake: frame_allocs 395 -> 337, frame_keeps 188 -> 169.

ludic.photo: the roll's order and a page of it are kept lists refilled in place (the pack's page
asked for both every frame), its kept lists say @max(256), and a shot's tags, a photograph's fact
and a new roll are declared (once per shot, sale or trip). 18 allocs and 9 keeps -> 0 and 0.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ludic.photo/frame.ludic

@@ -27,6 +27,7 @@ export function photo_frame_subject(photo_st: mut PhotoState, sp: int, name: str
 }
 
 # anything else in the picture worth naming: a landmark, the water, a sign
+@alloc_ok("a shot's tags: once per photograph taken")
 export function photo_frame_tag(photo_st: mut PhotoState, text: string) -> void {
   if len(text) == 0 { return }
   if len(photo_st.pht_pending_tags) > 0 { photo_st.pht_pending_tags = photo_st.pht_pending_tags + ", " }

packages/ludic.photo/order.ludic

@@ -12,7 +12,7 @@ export function photo_sort_set(photo_st: mut PhotoState, s: int) -> void { photo
 
 # the roll in the chosen order: newest first, best first, or by subject
 export function photo_order(photo_st: mut PhotoState) -> []int {
-  photo_st.pht_order = new []int
+  List.clear(photo_st.pht_order)
   for i in 0 .. photo_st.pht_n { push(photo_st.pht_order, i) }
   if photo_st.pht_sort == PHOTO_NEWEST {
     for i in 0 .. photo_st.pht_n { photo_st.pht_order[i] = photo_st.pht_n - 1 - i }
@@ -39,13 +39,14 @@ export function photo_page_step(photo_st: mut PhotoState, d: int) -> void { phot
 
 # a page of the roll, in its order; the page is held inside the roll
 export function photo_page_list(photo_st: mut PhotoState) -> []int {
-  let out = new []int
+  let out = photo_st.pht_page_out
+  List.clear(out)
   if photo_st.pht_n == 0 { return out }
   let order = photo_order(photo_st)
   if photo_st.pht_page >= photo_pages(photo_st) { photo_st.pht_page = photo_pages(photo_st) - 1 }
   for k in 0 .. PHOTO_PAGE {
     let oi = photo_st.pht_page * PHOTO_PAGE + k
-    if oi < photo_st.pht_n { push(out, order[oi]) }
+    if oi < photo_st.pht_n { push(photo_st.pht_page_out, order[oi]) }
   }
   return out
 }

packages/ludic.photo/roll.ludic

@@ -29,7 +29,8 @@ export property PhotoFact {
 export state PhotoState {
   pht_sort: int = 0
   pht_page: int = 0
-  pht_order: []int = null
+  @max(256) pht_order: []int = new []int      # the roll's order, refilled in place (a page asks it every frame)
+  @max(8) pht_page_out: []int = new []int     # a page of it, the same
   pht_max: int = 40
   pht_n: int = 0
   pht_day: []int = null
@@ -39,8 +40,8 @@ export state PhotoState {
   pht_sold: []int = null
   pht_grade: []int = null
   pht_why: []int = null
-  pht_tags: []string = null
-  pht_file: []string = null
+  @max(256) pht_tags: []string = null
+  @max(256) pht_file: []string = null
   pht_best: []int = null          # the best grade yet, per subject
   pht_species_shot: int = 0       # every subject ever photographed, sold or deleted
   pht_legend_shot: int = 0
@@ -63,6 +64,7 @@ export function photo_facts(photo_st: PhotoState) -> Queue<PhotoFact> {
   return photo_st.pht_fact_q
 }
 
+@alloc_ok("a photograph's fact: one per shot kept, sold or deleted")
 function pht_fact(photo_st: PhotoState, what: int, i: int) -> PhotoFact {
   let f = new PhotoFact
   f.what = what
@@ -84,6 +86,7 @@ function pht_floats(n: int) -> []float {
 }
 
 # an empty roll of `max` frames
+@alloc_ok("a new roll: once a trip, and when the roll is emptied")
 function pht_blank(photo_st: mut PhotoState) -> void {
   photo_st.pht_n = 0
   photo_st.pht_day = pht_ints(photo_st.pht_max)