Add loading state indicators to all form submit buttons

Add hx_disabled_elt="this" to submit buttons across all forms to
disable them during form submission, preventing double-clicks and
providing visual feedback that the action is processing.

Buttons updated:
- actions.py: promote, cohort, hatch, tag-add, tag-end, attrs,
  outcome, status-correct forms and their diff_panel confirmations
- eggs.py: collect and sell forms
- feed.py: give and purchase forms
- locations.py: create and rename forms
- move.py: move form and diff_panel confirmation
- products.py: create form
- registry.py: filter apply button

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

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

src/animaltrack/web/templates/actions.py

@@ -266,7 +266,7 @@ def cohort_form(
         # Hidden nonce for idempotency
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Create Cohort", type="submit", cls=ButtonT.primary),
+        Button("Create Cohort", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -395,7 +395,7 @@ def hatch_form(
         # Hidden nonce for idempotency
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Record Hatch", type="submit", cls=ButtonT.primary),
+        Button("Record Hatch", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -522,6 +522,7 @@ def promote_form(
             "Save Changes" if is_rename else "Promote to Identified",
             type="submit",
             cls=ButtonT.primary,
+            hx_disabled_elt="this",
         ),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
@@ -648,7 +649,7 @@ def tag_add_form(
         Hidden(name="confirmed", value=""),
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Add Tag", type="submit", cls=ButtonT.primary),
+        Button("Add Tag", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -712,6 +713,7 @@ def tag_add_diff_panel(
                 f"Confirm Tag ({diff.server_count} animals)",
                 type="submit",
                 cls=ButtonT.primary,
+                hx_disabled_elt="this",
             ),
             cls="flex gap-3 mt-4",
         ),
@@ -867,7 +869,13 @@ def tag_end_form(
         Hidden(name="confirmed", value=""),
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("End Tag", type="submit", cls=ButtonT.primary, disabled=not active_tags),
+        Button(
+            "End Tag",
+            type="submit",
+            cls=ButtonT.primary,
+            disabled=not active_tags,
+            hx_disabled_elt="this",
+        ),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -931,6 +939,7 @@ def tag_end_diff_panel(
                 f"Confirm End Tag ({diff.server_count} animals)",
                 type="submit",
                 cls=ButtonT.primary,
+                hx_disabled_elt="this",
             ),
             cls="flex gap-3 mt-4",
         ),
@@ -1110,7 +1119,7 @@ def attrs_form(
         Hidden(name="confirmed", value=""),
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Update Attributes", type="submit", cls=ButtonT.primary),
+        Button("Update Attributes", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -1180,6 +1189,7 @@ def attrs_diff_panel(
                 f"Confirm Update ({diff.server_count} animals)",
                 type="submit",
                 cls=ButtonT.primary,
+                hx_disabled_elt="this",
             ),
             cls="flex gap-3 mt-4",
         ),
@@ -1405,7 +1415,7 @@ def outcome_form(
         Hidden(name="confirmed", value=""),
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Record Outcome", type="submit", cls=ButtonT.destructive),
+        Button("Record Outcome", type="submit", cls=ButtonT.destructive, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -1484,6 +1494,7 @@ def outcome_diff_panel(
                 f"Confirm Outcome ({diff.server_count} animals)",
                 type="submit",
                 cls=ButtonT.destructive,
+                hx_disabled_elt="this",
             ),
             cls="flex gap-3 mt-4",
         ),
@@ -1626,7 +1637,7 @@ def status_correct_form(
         Hidden(name="confirmed", value=""),
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Correct Status", type="submit", cls=ButtonT.destructive),
+        Button("Correct Status", type="submit", cls=ButtonT.destructive, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -1693,6 +1704,7 @@ def status_correct_diff_panel(
                 f"Confirm Correction ({diff.server_count} animals)",
                 type="submit",
                 cls=ButtonT.destructive,
+                hx_disabled_elt="this",
             ),
             cls="flex gap-3 mt-4",
         ),

src/animaltrack/web/templates/eggs.py

@@ -206,7 +206,7 @@ def harvest_form(
         # Hidden nonce for idempotency
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Record Harvest", type="submit", cls=ButtonT.primary),
+        Button("Record Harvest", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -347,7 +347,7 @@ def sell_form(
         # Hidden nonce for idempotency
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Record Sale", type="submit", cls=ButtonT.primary),
+        Button("Record Sale", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",

src/animaltrack/web/templates/feed.py

@@ -260,7 +260,7 @@ def give_feed_form(
         # Hidden nonce
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Record Feed Given", type="submit", cls=ButtonT.primary),
+        Button("Record Feed Given", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         action=action,
         method="post",
         cls="space-y-4",
@@ -404,7 +404,7 @@ def purchase_feed_form(
         # Hidden nonce
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Record Purchase", type="submit", cls=ButtonT.primary),
+        Button("Record Purchase", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         action=action,
         method="post",
         cls="space-y-4",

src/animaltrack/web/templates/locations.py

@@ -47,7 +47,7 @@ def location_list(
                 placeholder="Enter location name",
             ),
             Hidden(name="nonce", value=str(uuid4())),
-            Button("Create Location", type="submit", cls=ButtonT.primary),
+            Button("Create Location", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
             hx_post="/actions/location-created",
             hx_target="#location-list",
             hx_swap="outerHTML",
@@ -160,7 +160,7 @@ def rename_form(
             Hidden(name="nonce", value=str(uuid4())),
             DivFullySpaced(
                 Button("Cancel", type="button", cls=ButtonT.ghost, hx_get="/locations"),
-                Button("Rename", type="submit", cls=ButtonT.primary),
+                Button("Rename", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
             ),
             hx_post="/actions/location-renamed",
             hx_target="#location-list",

src/animaltrack/web/templates/move.py

@@ -174,7 +174,7 @@ def move_form(
         Hidden(name="confirmed", value=""),
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Move Animals", type="submit", cls=ButtonT.primary),
+        Button("Move Animals", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",
@@ -263,6 +263,7 @@ def diff_panel(
                 f"Confirm Move ({diff.server_count} animals)",
                 type="submit",
                 cls=ButtonT.primary,
+                hx_disabled_elt="this",
             ),
             cls="flex gap-3 mt-4",
         ),

src/animaltrack/web/templates/products.py

@@ -102,7 +102,7 @@ def product_sold_form(
         # Hidden nonce for idempotency
         Hidden(name="nonce", value=str(ULID())),
         # Submit button
-        Button("Record Sale", type="submit", cls=ButtonT.primary),
+        Button("Record Sale", type="submit", cls=ButtonT.primary, hx_disabled_elt="this"),
         # Form submission via standard action/method (hx-boost handles AJAX)
         action=action,
         method="post",

src/animaltrack/web/templates/registry.py

@@ -107,7 +107,12 @@ def registry_header(filter_str: str, total_count: int) -> Div:
                 ),
                 # Buttons container
                 Div(
-                    Button("Apply", type="submit", cls=f"{ButtonT.primary} px-4"),
+                    Button(
+                        "Apply",
+                        type="submit",
+                        cls=f"{ButtonT.primary} px-4",
+                        hx_disabled_elt="this",
+                    ),
                     # Clear button (only shown if filter is active)
                     A(
                         "Clear",