Improve Fleet-Ops server test coverage

[roncodes]

Summary

• Continues the backend-only Fleet-Ops coverage push toward the enforced 100% server coverage gate.
• Keeps new and touched coverage organized under categorized directories such as server/tests/Unit/... and server/tests/Feature/... instead of adding more flat files under server/tests.
• Adds focused Zone model coverage for service-area relationship metadata, static type accessors, GEOS polygon conversion boundaries that do not require local GEOS extension classes, and generated spatial polygon closure.
• Adds focused WorkOrder model coverage for relationship contracts, activity logging options, assignment lifecycle updates, guarded lifecycle transitions, checklist completion fallbacks, schedule helpers, overdue checks, and priority predicates.
• Adds categorized Unit/Notifications coverage for terminal order completion/failure mail payloads, database array payloads, terminal titles/messages, reason propagation, console URL construction, and tracking-number fallback behavior.
• Adds categorized Unit/Constraints, Unit/Jobs, and Unit/Support/Analytics coverage for HOS validation outcomes, simulated waypoint event payloads, and geofence violation dashboard summaries.
• Adds categorized Unit/Tracking coverage for tracking route-point resolution, routeability checks, and state-signature behavior, while extending dispatch notification mail coverage for waypoint tracking fallbacks.
• Adds focused Equipment model coverage for relationship contracts, morph assignment normalization, appended accessors, query scopes, assignment activity payloads, maintenance helpers, replacement-cost estimates, and import row hydration.
• Moves the LiveController viewport coverage from a flat root test into server/tests/Feature/Http/Internal/LiveControllerTest.php.
• Preserves the CI coverage contract: Clover reporting is generated locally and the 100% fail-under gate is wired and currently fails because total backend coverage is not yet 100%.

Current Coverage

Latest locally verified backend coverage from composer coverage:baseline:

Metric	Coverage	Covered / Total
Lines	74.02%	25,230 / 34,086
Methods	61.83%	2,684 / 4,341
Classes	34.74%	181 / 521

Targeted file progress:

File	Coverage	Covered / Total
server/src/Models/Zone.php	71.05%	27 / 38 lines
server/src/Models/WorkOrder.php	87.50%	168 / 192 lines
server/src/Models/Equipment.php	88.82%	143 / 161 lines
server/src/Models/Payload.php	47.23%	196 / 415 lines
server/src/Notifications/OrderCompleted.php	70.00%	21 / 30 lines
server/src/Notifications/OrderFailed.php	68.75%	22 / 32 lines
server/src/Constraints/HOSConstraint.php	91.57%	76 / 83 lines
server/src/Jobs/SimulateWaypointReached.php	100.00%	6 / 6 lines
server/src/Support/Analytics/GeofenceViolations.php	100.00%	44 / 44 lines
server/src/Tracking/TrackingContext.php	100.00%	19 / 19 lines
server/src/Notifications/OrderDispatched.php	61.22%	30 / 49 lines

Previous locally reported backend line coverage was 73.98%, so this slice raises total backend line coverage by 0.04 percentage points. The newest local commits remain unpushed for now because the increase is below the agreed 5-10% push threshold.

Validation

• php -l server/tests/Feature/Http/Internal/LiveControllerTest.php
• php -l server/tests/Unit/Models/EquipmentTest.php
• php -l server/tests/Unit/Models/WorkOrderTest.php
• php -l server/tests/Unit/Models/ZoneTest.php
• php -l server/tests/Unit/Notifications/TerminalOrderNotificationsTest.php
• php -l server/tests/Unit/Constraints/HOSConstraintTest.php
• php -l server/tests/Unit/Jobs/SimulateWaypointReachedTest.php
• php -l server/tests/Unit/Support/Analytics/GeofenceViolationsTest.php
• php -l server/tests/Unit/Tracking/TrackingContextTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Feature/Http/Internal/LiveControllerTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Models/EquipmentTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Models/WorkOrderTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Models/ZoneTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Notifications/TerminalOrderNotificationsTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Constraints/HOSConstraintTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Jobs/SimulateWaypointReachedTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Support/Analytics/GeofenceViolationsTest.php
• php -d memory_limit=-1 scripts/pest-runner.php --colors=always server/tests/Unit/Tracking/TrackingContextTest.php
• vendor/bin/pest --colors=always server/tests/Unit/Tracking/TrackingContextTest.php server/tests/Unit/Notifications/TerminalOrderNotificationsTest.php
• composer test:lint
• composer test:unit
• composer coverage:baseline
• php scripts/coverage-summary.php coverage/clover.xml --fail-under=100
• git diff --check
• git diff --cached --check

Notes

• The 100% coverage gate is intentionally still failing at 74.02% line coverage.
• The latest local commits have not been pushed because they do not meet the requested significant-progress threshold for pushing.
• Additional backend coverage slices will continue to land locally and the PR will be pushed after a meaningful coverage increase.