feat(webapp): link to task-specific test page from filtered runs table (#2741)

When viewing runs filtered to a single task, the "Create a test run" and
"Run a test" buttons now navigate directly to the task-specific test
page instead of the generic test page.

This improves UX by pre-populating the test form with the filtered task,
saving users from having to manually select it again.


## ✅ Checklist

- [x] I have followed every step in the [contributing
guide](https://github.com/triggerdotdev/trigger.dev/blob/main/CONTRIBUTING.md)
- [x] The PR title follows the convention.
- [x] I ran and tested the code works

## Screenshots

<img width="1706" height="1392" alt="image"
src="https://github.com/user-attachments/assets/d8b5d445-73b5-426c-83a4-90ac2a95b955"
/>

Author: 0ski

apps/webapp/app/components/runs/v3/TaskRunsTable.tsx

@@ -31,7 +31,7 @@ import {
   type NextRunListItem,
 } from "~/presenters/v3/NextRunListPresenter.server";
 import { formatCurrencyAccurate } from "~/utils/numberFormatter";
-import { docsPath, v3RunSpanPath, v3TestPath } from "~/utils/pathBuilder";
+import { docsPath, v3RunSpanPath, v3TestPath,v3TestTaskPath } from "~/utils/pathBuilder";
 import { DateTime } from "../../primitives/DateTime";
 import { Paragraph } from "../../primitives/Paragraph";
 import { Spinner } from "../../primitives/Spinner";
@@ -565,6 +565,8 @@ function BlankState({ isLoading, filters }: Pick<RunsTableProps, "isLoading" | "
   if (isLoading) return <TableBlankRow colSpan={15}></TableBlankRow>;
 
   const { tasks, from, to, ...otherFilters } = filters;
+  const singleTaskFromFilters = filters.tasks.length === 1 ? filters.tasks[0] : null;
+  const testPath = singleTaskFromFilters ? v3TestTaskPath(organization, project, environment, {taskIdentifier: singleTaskFromFilters}) : v3TestPath(organization, project, environment);
 
   if (
     filters.tasks.length === 1 &&
@@ -579,7 +581,7 @@ function BlankState({ isLoading, filters }: Pick<RunsTableProps, "isLoading" | "
         </Paragraph>
         <div className="mt-6 flex items-center justify-center gap-2">
           <LinkButton
-            to={v3TestPath(organization, project, environment)}
+            to={testPath}
             variant="tertiary/medium"
             LeadingIcon={BeakerIcon}
             className="inline-flex"
@@ -620,7 +622,7 @@ function BlankState({ isLoading, filters }: Pick<RunsTableProps, "isLoading" | "
           <LinkButton
             LeadingIcon={BeakerIcon}
             variant="tertiary/medium"
-            to={v3TestPath(organization, project, environment)}
+            to={testPath}
           >
             Run a test
           </LinkButton>