feat(FR-2677): add DeploymentReplicasTab with replica detail Drawer

[agatha197]

Resolves FR-2677.

Summary

Adds the Flow 3 Replicas tab for the Deployment detail page. Renders a paginated BAITable of ModelReplica rows (ID, health via ReplicaStatusTag, Active Pool indicator from activenessStatus, traffic ratio placeholder, session link, revision, createdAt). Clicking a row opens an antd Drawer with the full replica detail — readiness / liveness / activeness statuses, session ID, revision name, endpoint URL, createdAt.

Scope

• New: react/src/components/DeploymentReplicasTab.tsx
• Props: { deploymentFrgmt: DeploymentReplicasTab_deployment$key }
• Uses useRefetchableFragment on ModelDeployment with replicas(orderBy, limit, offset) pagination; tab-local state (current, pageSize, order, selected) persisted via nuqs under rCurrent / rPageSize / rOrder / rSelected.
• Drawer is inline (keeps PR scope small, easy to extract later).
• Drawer-only fields (readinessStatus, activenessStatus, revision.name, networkAccess.endpointUrl) are projected from the same fragment for cache reuse.

Dependencies (separate PRs)

• FR-2666 i18n keys (deployment.*, replicaStatus.*) — sibling PR; diff below includes them so CI can pass standalone.
• FR-2667 ReplicaStatusTag + tsconfig.json stories exclude — sibling PR; diff below includes them so CI can pass standalone.

Once FR-2666 and FR-2667 merge to main, this branch can be rebased and those commits will drop out cleanly.

TODO / needs-backend

• TODO(needs-backend): FR-2677 on the trafficRatio column — ModelReplica does not expose trafficRatio today; that value lives on the sibling Route object. Wire it when the backend adds a pass-through field or when this tab adopts a parallel routes(deploymentId: …) query.

Verify

bash scripts/verify.sh locally — all checks pass (Relay, Lint, Format, TypeScript).

[agatha197]

• feat(FR-2684): migrate Deploy buttons to [Deploy | ▼] split using useDeploymentLauncher #6928
• feat(FR-2681): add DeploymentDetailPage with header, Configuration overview, and 4 tabs #6927
• feat(FR-2672): add AdminDeploymentListPage with extended filters gated by feature flag #6924
• feat(FR-2671): add DeploymentListPage with myDeployments query and URL state #6925
• feat(FR-2675): add DeploymentLauncherPage with create/edit mutations #6922
• feat(FR-2680): add DeploymentAutoScalingTab wrapping AutoScalingRuleList #6913
• feat(FR-2679): add DeploymentAccessTokensTab with create/delete flows #6918
• feat(FR-2678): add DeploymentRevisionHistoryTab with rollback mutation #6914
• feat(FR-2677): add DeploymentReplicasTab with replica detail Drawer #6920 👈 (View in Graphite)
• feat(FR-1368): add deployment detail — configuration section, 4 tabs, and DeploymentDetailPage #6917 : 2 other dependent PRs (#6985 , #7038 )
• feat(FR-1368): add deployment list — table, DeploymentListPage, and AdminDeploymentListPage #6916
• feat(FR-1368): add deployment launcher — multi-step form, hook, page, and deploy split buttons #6912 : 2 other dependent PRs (#6911 , #6940 )
• feat(FR-1368): add shared deployment UI components — ReplicaStatusTag, DeploymentStatusTag, DeploymentOwnerInfo #6910 : 1 other dependent PR (#6908 )
• feat(FR-1368): add deployment infrastructure — feature flag, i18n keys, routes, and sidebar #6904 : 1 other dependent PR (#6906 )
• main

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[github-actions]

Coverage report for ./react

St.❔	Category	Percentage	Covered / Total
🔴	Statements	8.46% (-0.02% 🔻)	1757/20780
🔴	Branches	7.74% (-0.03% 🔻)	1131/14610
🔴	Functions	5.06% (-0.02% 🔻)	285/5631
🔴	Lines	8.18% (-0.02% 🔻)	1649/20163

Show new covered files 🐣

St.❔	File	Statements	Branches	Functions	Lines
🔴	... / DeploymentReplicasTab.tsx	0%	0%	0%	0%

Test suite run success

856 tests passing in 39 suites.

Report generated by 🧪jest coverage report action from 982ffdc

[agatha197]

Consolidated into grouped PR stack (Foundation/Components/Launcher/List/Detail). Closing this individual PR.