feat(fusion_clock): bi-weekly attendance filter — pay-period filters + picker

Reuse the existing Pay Period setting (Frequency + Anchor) as the single
source of truth via a shared pure helper (models/pay_period.py); fusion.clock.report
delegates to it. Add Current/Previous/Next Pay Period filters to the attendance
search view (search-method computed booleans on hr.attendance), a Bi-Weekly Period
picker wizard (pick start -> auto +2 weeks, editable; Apply opens the filtered list)
reachable from an Attendance menu item and a dashboard tile. Window follows the
configured frequency; TZ-correct via local-day boundaries. Bump 3.14.4 -> 3.15.0.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

fusion_clock/views/clock_menus.xml

@@ -49,6 +49,13 @@
               sequence="10"
               groups="group_fusion_clock_manager,group_fusion_clock_team_lead"/>
 
+    <menuitem id="menu_fusion_clock_biweekly_period"
+              name="Bi-Weekly Period"
+              parent="menu_fusion_clock_attendance"
+              action="action_fusion_clock_period_picker"
+              sequence="15"
+              groups="group_fusion_clock_manager,group_fusion_clock_team_lead"/>
+
     <menuitem id="menu_fusion_clock_leaves"
               name="Leave Requests"
               parent="menu_fusion_clock_attendance"

fusion_clock/views/hr_attendance_views.xml

@@ -88,6 +88,10 @@
                 <filter name="fclk_has_penalty" string="Has Penalty" domain="[('x_fclk_penalty_ids', '!=', False)]"/>
                 <filter name="fclk_has_overtime" string="Has Overtime" domain="[('x_fclk_is_overtime', '=', True)]"/>
                 <separator/>
+                <filter name="fclk_period_current" string="Current Pay Period" domain="[('x_fclk_in_current_period', '=', True)]"/>
+                <filter name="fclk_period_previous" string="Previous Pay Period" domain="[('x_fclk_in_previous_period', '=', True)]"/>
+                <filter name="fclk_period_next" string="Next Pay Period" domain="[('x_fclk_in_next_period', '=', True)]"/>
+                <separator/>
                 <filter name="group_location" string="Location" context="{'group_by': 'x_fclk_location_id'}"/>
                 <filter name="group_source" string="Source" context="{'group_by': 'x_fclk_clock_source'}"/>
             </xpath>

fusion_clock/views/res_config_settings_views.xml

@@ -193,7 +193,7 @@
                     <!-- ============================================================ -->
                     <block title="Pay Period &amp; Reports" name="fclk_pay_period_reports">
                         <setting id="fclk_pay_period" string="Pay Period Schedule"
-                                 help="Defines how often attendance reports are generated and the start/end dates of each reporting period.">
+                                 help="Defines how often attendance reports are generated and the start/end dates of each period. The Anchor Date is the pay-period start used by both the reports AND the Bi-Weekly Period filter/picker on the Attendances list.">
                             <div class="content-group">
                                 <div class="row mt16">
                                     <label for="fclk_pay_period_type" string="Frequency" class="col-lg-5 o_light_label"/>