Add pending transaction handling and duplicate reconciliation logic (#602)

* Add pending transaction handling and duplicate reconciliation logic

- Implemented logic to exclude pending transactions from budgets and analytics calculations.
- Introduced mechanisms for reconciling pending transactions with posted versions.
- Added duplicate detection with support for merging or dismissing matches.
- Updated transaction search filters to include a `status_filter` for pending/confirmed transactions.
- Introduced UI elements for reviewing and resolving duplicates.
- Enhanced `ProviderSyncSummary` with stats for reconciled and stale pending transactions.

* Refactor translation handling and enhance transaction and sync logic

- Moved hardcoded strings to locale files for improved translation support.
- Refined styling for duplicate transaction indicators and sync summaries.
- Improved logic for excluding stale pending transactions and updating timestamps on batch exclusion.
- Added unique IDs to status filters for better element targeting in UI.
- Optimized database queries to avoid N+1 issues in stale pending calculations.

* Add sync settings and enhance pending transaction handling

- Introduced a new "Sync Settings" section in hosting settings with UI to toggle inclusion of pending transactions.
- Updated handling of pending transactions with improved inference logic for `posted=0` and `transacted_at` in processors.
- Added priority order for pending transaction inclusion: explicit argument > environment variable > runtime configurable setting.
- Refactored settings and controllers to store updated sync preferences.

* Refactor sync settings and pending transaction reconciliation

- Extracted logic for pending transaction reconciliation, stale exclusion, and unmatched tracking into dedicated methods for better maintainability.
- Updated sync settings to infer defaults from multiple provider environment variables (`SIMPLEFIN_INCLUDE_PENDING`, `PLAID_INCLUDE_PENDING`).
- Refined UI and messaging to handle multi-provider configurations in sync settings.

# Conflicts:
#	app/models/simplefin_item/importer.rb

* Debounce transaction reconciliation during imports

- Added per-run reconciliation debouncing to prevent repeated scans for the same account during chunked history imports.
- Trimmed size of reconciliation stats to retain recent details only.
- Introduced error tracking for reconciliation steps to improve UI visibility of issues.

* Apply ABS() in pending transaction queries and improve error handling

- Updated pending transaction logic to use ABS() for consistent handling of negative amounts.
- Adjusted amount bounds calculations to ensure accuracy for both positive and negative values.
- Refined exception handling in `merge_duplicate` to log failures and update user alert.
- Replaced `Date.today` with `Date.current` in tests to ensure timezone consistency.
- Minor optimization to avoid COUNT queries by loading limited records directly.

* Improve error handling in duplicate suggestion and dismissal logic

- Added exception handling for `store_duplicate_suggestion` to log failures and prevent crashes during fuzzy/low-confidence matches.
- Enhanced `dismiss_duplicate` action to handle `ActiveRecord::RecordInvalid` and display appropriate user alerts.

---------

Co-authored-by: Josh Waldrep <joshua.waldrep5+github@gmail.com>

app/components/UI/account/activity_feed.html.erb

@@ -46,6 +46,42 @@
                             "data-auto-submit-form-target": "auto" %>
             </div>
           </div>
+
+          <%= render DS::Menu.new(variant: "button", no_padding: true) do |menu| %>
+            <% menu.with_button(
+              id: "activity-status-filter-button",
+              type: "button",
+              text: t("accounts.show.activity.filter"),
+              variant: "outline",
+              icon: "list-filter"
+            ) %>
+
+            <% menu.with_custom_content do %>
+              <div class="p-3 space-y-3 min-w-[160px]">
+                <p class="text-xs font-medium text-secondary uppercase"><%= t("accounts.show.activity.status") %></p>
+                <div class="flex items-center gap-3">
+                  <%= check_box_tag "q[status][]",
+                                    "confirmed",
+                                    params.dig(:q, :status)&.include?("confirmed"),
+                                    id: "q_status_confirmed",
+                                    class: "checkbox checkbox--light",
+                                    form: "entries-search",
+                                    onchange: "document.getElementById('entries-search').requestSubmit()" %>
+                  <%= label_tag "q_status_confirmed", t("accounts.show.activity.confirmed"), class: "text-sm text-primary" %>
+                </div>
+                <div class="flex items-center gap-3">
+                  <%= check_box_tag "q[status][]",
+                                    "pending",
+                                    params.dig(:q, :status)&.include?("pending"),
+                                    id: "q_status_pending",
+                                    class: "checkbox checkbox--light",
+                                    form: "entries-search",
+                                    onchange: "document.getElementById('entries-search').requestSubmit()" %>
+                  <%= label_tag "q_status_pending", t("accounts.show.activity.pending"), class: "text-sm text-primary" %>
+                </div>
+              </div>
+            <% end %>
+          <% end %>
       <% end %>
       <%= button_tag type: "button",
             id: "toggle-checkboxes-button",