Fix 405 error after event deletion via HX-Push-Url header

When HTMX boosted forms submit via POST, the browser URL wasn't being
updated correctly. This caused window.location.reload() after event
deletion to reload the action URL (e.g., /actions/feed-given) instead
of the display URL (e.g., /feed), resulting in a 405 Method Not Allowed.

The fix adds a render_page_post() helper that returns FT components
with an HttpHeader("HX-Push-Url", push_url). This tells HTMX to update
the browser history to the correct URL after successful form submission.

Updated routes:
- /actions/feed-given -> push /feed
- /actions/feed-purchased -> push /feed
- /actions/product-collected -> push /
- /actions/product-sold -> push /
- /actions/animal-move -> push /move
- /actions/animal-cohort -> push /actions/cohort
- /actions/hatch-recorded -> push /actions/hatch
- /actions/animal-tag-add -> push /actions/tag-add
- /actions/animal-tag-end -> push /actions/tag-end
- /actions/animal-attrs -> push /actions/attrs
- /actions/animal-outcome -> push /actions/outcome
- /actions/animal-status-correct -> push /actions/status-correct

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/animaltrack/web/routes/actions.py

@@ -37,7 +37,7 @@ from animaltrack.selection import compute_roster_hash, parse_filter, resolve_fil
 from animaltrack.selection.validation import SelectionContext, validate_selection
 from animaltrack.services.animal import AnimalService, ValidationError
 from animaltrack.web.auth import UserRole, require_role
-from animaltrack.web.templates import render_page
+from animaltrack.web.templates import render_page, render_page_post
 from animaltrack.web.templates.actions import (
     attrs_diff_panel,
     attrs_form,
@@ -206,9 +206,11 @@ async def animal_cohort(request: Request, session):
     )
 
     # Success: re-render fresh form
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         cohort_form(locations, species_list),
+        push_url="/actions/cohort",
         title="Create Cohort - AnimalTrack",
         active_nav=None,
     )
@@ -349,9 +351,11 @@ async def hatch_recorded(request: Request, session):
     )
 
     # Success: re-render fresh form
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         hatch_form(locations, species_list),
+        push_url="/actions/hatch",
         title="Record Hatch - AnimalTrack",
         active_nav=None,
     )
@@ -690,9 +694,11 @@ async def animal_tag_add(request: Request, session):
     )
 
     # Success: re-render fresh form
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         tag_add_form(),
+        push_url="/actions/tag-add",
         title="Add Tag - AnimalTrack",
         active_nav=None,
     )
@@ -939,9 +945,11 @@ async def animal_tag_end(request: Request, session):
     )
 
     # Success: re-render fresh form
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         tag_end_form(),
+        push_url="/actions/tag-end",
         title="End Tag - AnimalTrack",
         active_nav=None,
     )
@@ -1175,9 +1183,11 @@ async def animal_attrs(request: Request, session):
     )
 
     # Success: re-render fresh form
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         attrs_form(),
+        push_url="/actions/attrs",
         title="Update Attributes - AnimalTrack",
         active_nav=None,
     )
@@ -1455,10 +1465,11 @@ async def animal_outcome(request: Request, session):
     )
 
     # Success: re-render fresh form
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
     product_repo = ProductRepository(db)
     products = [(p.code, p.name) for p in product_repo.list_all() if p.active]
 
-    return render_page(
+    return render_page_post(
         request,
         outcome_form(
             filter_str="",
@@ -1468,6 +1479,7 @@ async def animal_outcome(request: Request, session):
             resolved_count=0,
             products=products,
         ),
+        push_url="/actions/outcome",
         title="Record Outcome - AnimalTrack",
         active_nav=None,
     )
@@ -1678,7 +1690,8 @@ async def animal_status_correct(req: Request, session):
     )
 
     # Success: re-render fresh form
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         req,
         status_correct_form(
             filter_str="",
@@ -1687,6 +1700,7 @@ async def animal_status_correct(req: Request, session):
             ts_utc=int(time.time() * 1000),
             resolved_count=0,
         ),
+        push_url="/actions/status-correct",
         title="Correct Status - AnimalTrack",
         active_nav=None,
     )

src/animaltrack/web/routes/eggs.py

@@ -24,7 +24,7 @@ from animaltrack.repositories.products import ProductRepository
 from animaltrack.repositories.user_defaults import UserDefaultsRepository
 from animaltrack.repositories.users import UserRepository
 from animaltrack.services.products import ProductService, ValidationError
-from animaltrack.web.templates import render_page
+from animaltrack.web.templates import render_page, render_page_post
 from animaltrack.web.templates.eggs import eggs_page
 
 # 30 days in milliseconds
@@ -483,7 +483,8 @@ async def product_collected(request: Request, session):
     display_data = _get_eggs_display_data(db, locations)
 
     # Success: re-render form with location sticking, qty cleared
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         eggs_page(
             locations,
@@ -494,6 +495,7 @@ async def product_collected(request: Request, session):
             sell_action=product_sold,
             **display_data,
         ),
+        push_url="/",
         title="Eggs - AnimalTrack",
         active_nav="eggs",
     )
@@ -652,7 +654,8 @@ async def product_sold(request: Request, session):
     display_data = _get_eggs_display_data(db, locations)
 
     # Success: re-render form with product sticking
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         eggs_page(
             locations,
@@ -663,6 +666,7 @@ async def product_sold(request: Request, session):
             sell_action=product_sold,
             **display_data,
         ),
+        push_url="/",
         title="Eggs - AnimalTrack",
         active_nav="eggs",
     )

src/animaltrack/web/routes/feed.py

@@ -22,7 +22,7 @@ from animaltrack.repositories.locations import LocationRepository
 from animaltrack.repositories.user_defaults import UserDefaultsRepository
 from animaltrack.repositories.users import UserRepository
 from animaltrack.services.feed import FeedService, ValidationError
-from animaltrack.web.templates import render_page
+from animaltrack.web.templates import render_page, render_page_post
 from animaltrack.web.templates.feed import feed_page
 
 # 30 days in milliseconds
@@ -498,7 +498,8 @@ async def feed_given(request: Request, session):
     display_data = _get_feed_display_data(db, locations, feed_types)
 
     # Success: re-render form with location/type sticking, amount reset
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         feed_page(
             locations,
@@ -512,6 +513,7 @@ async def feed_given(request: Request, session):
             purchase_action=feed_purchased,
             **display_data,
         ),
+        push_url="/feed",
         title="Feed - AnimalTrack",
         active_nav="feed",
     )
@@ -666,7 +668,8 @@ async def feed_purchased(request: Request, session):
     display_data = _get_feed_display_data(db, locations, feed_types)
 
     # Success: re-render form with fields cleared
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         feed_page(
             locations,
@@ -676,6 +679,7 @@ async def feed_purchased(request: Request, session):
             purchase_action=feed_purchased,
             **display_data,
         ),
+        push_url="/feed",
         title="Feed - AnimalTrack",
         active_nav="feed",
     )

src/animaltrack/web/routes/move.py

@@ -23,7 +23,7 @@ from animaltrack.repositories.locations import LocationRepository
 from animaltrack.selection import compute_roster_hash, parse_filter, resolve_filter
 from animaltrack.selection.validation import SelectionContext, validate_selection
 from animaltrack.services.animal import AnimalService, ValidationError
-from animaltrack.web.templates import render_page
+from animaltrack.web.templates import render_page, render_page_post
 from animaltrack.web.templates.move import diff_panel, move_form
 
 # Milliseconds per day
@@ -396,13 +396,15 @@ async def animal_move(request: Request, session):
     display_data = _get_move_display_data(db, locations)
 
     # Success: re-render fresh form (nothing sticks per spec)
-    return render_page(
+    # Use render_page_post to set HX-Push-Url header for correct browser URL
+    return render_page_post(
         request,
         move_form(
             locations,
             action=animal_move,
             **display_data,
         ),
+        push_url="/move",
         title="Move - AnimalTrack",
         active_nav="move",
     )

src/animaltrack/web/templates/__init__.py

@@ -1,7 +1,7 @@
 # ABOUTME: Templates package for AnimalTrack web UI.
 # ABOUTME: Contains reusable UI components built with FastHTML and MonsterUI.
 
-from animaltrack.web.templates.base import page, render_page
+from animaltrack.web.templates.base import page, render_page, render_page_post
 from animaltrack.web.templates.nav import BottomNav
 
-__all__ = ["page", "render_page", "BottomNav"]
+__all__ = ["page", "render_page", "render_page_post", "BottomNav"]

src/animaltrack/web/templates/base.py

@@ -1,7 +1,7 @@
 # ABOUTME: Base HTML template for AnimalTrack pages.
 # ABOUTME: Provides consistent layout with MonsterUI theme and responsive nav.
 
-from fasthtml.common import Container, Div, Script, Style, Title
+from fasthtml.common import Container, Div, HttpHeader, Script, Style, Title
 from starlette.requests import Request
 
 from animaltrack.models.reference import UserRole
@@ -230,3 +230,26 @@ def render_page(request: Request, content, **page_kwargs):
         user_role=auth.role if auth else None,
         **page_kwargs,
     )
+
+
+def render_page_post(request: Request, content, push_url: str, **page_kwargs):
+    """Wrapper for POST responses that sets HX-Push-Url header.
+
+    When HTMX boosted forms submit via POST, the browser URL may not be updated
+    correctly. This wrapper returns the rendered page with an HX-Push-Url header
+    to ensure the browser history shows the correct URL.
+
+    This fixes the issue where window.location.reload() after form submission
+    would reload the wrong URL (the action URL instead of the display URL).
+
+    Args:
+        request: The Starlette request object.
+        content: Page content (FT components).
+        push_url: The URL to push to browser history (e.g., '/feed', '/move').
+        **page_kwargs: Additional arguments passed to page() (title, active_nav).
+
+    Returns:
+        Tuple of (FT components, HttpHeader) that FastHTML processes together.
+    """
+    page_content = render_page(request, content, **page_kwargs)
+    return (*page_content, HttpHeader("HX-Push-Url", push_url))