Polish split jobs API info & add fields to UI

*clarify help text and squash migrations
*adds new internal_limit field to Job model for faster reference
*if field is non-blank, populate shard params in summary_fields
*add summary information to UI job/wfj details, JT selector

awx/ui/client/features/output/details.component.js

@@ -126,6 +126,26 @@ function getSourceWorkflowJobDetails () {
     return { link, tooltip };
 }
 
+function getShardDetails () {
+    const internalLimitDetails = resource.model.get('summary_fields.internal_limit');
+
+    if (!internalLimitDetails) {
+        return null;
+    }
+
+    const shardDetails = resource.model.get('summary_fields.internal_limit.shard');
+
+    if (!shardDetails) {
+        return null;
+    }
+
+    const label = strings.get('labels.SHARD_DETAILS');
+    const offset = `${shardDetails.offset} of ${shardDetails.step} shards`;
+    const tooltip = strings.get('tooltips.SHARD_DETAILS');
+
+    return { label, offset, tooltip };
+}
+
 function getJobTemplateDetails () {
     const jobTemplate = resource.model.get('summary_fields.job_template');
 
@@ -671,6 +691,7 @@ function JobDetailsController (
         vm.jobType = getJobTypeDetails();
         vm.jobTemplate = getJobTemplateDetails();
         vm.sourceWorkflowJob = getSourceWorkflowJobDetails();
+        vm.shardDetails = getShardDetails();
         vm.inventory = getInventoryDetails();
         vm.project = getProjectDetails();
         vm.projectUpdate = getProjectUpdateDetails();

awx/ui/client/features/output/details.partial.html

@@ -151,6 +151,12 @@
     <div class="JobResults-resultRowText">{{ vm.jobType.value }}</div>
 </div>
 
+<!-- SHAAAAAARD -->
+<div class="JobResults-resultRow" ng-if="vm.shardDetails">
+    <label class="JobResults-resultRowLabel">{{ vm.shardDetails.label }}</label>
+    <div class="JobResults-resultRowText">{{ vm.shardDetails.offset }}</div>
+</div>
+
 <!-- LAUNCHED BY DETAIL -->
 <div class="JobResults-resultRow" ng-if="vm.launchedBy">
     <label class="JobResults-resultRowLabel">{{ vm.launchedBy.label }}</label>

awx/ui/client/features/output/output.strings.js

@@ -23,6 +23,7 @@ function OutputStrings (BaseString) {
         EXTRA_VARS: t.s('Read-only view of extra variables added to the job template'),
         INVENTORY: t.s('View the Inventory'),
         JOB_TEMPLATE: t.s('View the Job Template'),
+        SHARD_DETAILS: t.s('Job is one of several shards from a JT that splits on inventory'),
         PROJECT: t.s('View the Project'),
         PROJECT_UPDATE: t.s('View Project checkout results'),
         SCHEDULE: t.s('View the Schedule'),
@@ -55,6 +56,7 @@ function OutputStrings (BaseString) {
         JOB_EXPLANATION: t.s('Explanation'),
         JOB_TAGS: t.s('Job Tags'),
         JOB_TEMPLATE: t.s('Job Template'),
+        SHARD_DETAILS: t.s('Shard Details'),
         JOB_TYPE: t.s('Job Type'),
         LABELS: t.s('Labels'),
         LAUNCHED_BY: t.s('Launched By'),