feat:add SSR start command support for sites

[HarshMN2345]

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[greptile-apps]

Greptile Summary

This PR adds SSR startCommand support across the Sites creation and settings flows — centralizing the FrameworkAdapterWithStartCommand type in sites.ts, plumbing startCommand through the uploader, all sites.update passthrough calls, and the UI (SSR-gated input in configuration.svelte and updateBuildSettings.svelte). Previously flagged issues (duplicate type definition, missing startCommand in uploadSiteDeployment for the manual upload flow, and inconsistent null-coalescing on Reset buttons) are all resolved in this iteration.

Confidence Score: 5/5

Safe to merge — all previously reported issues are resolved and startCommand is consistently propagated across every relevant code path.

No P0 or P1 findings remain. The type is centralized, the uploader accepts and forwards startCommand, all passthrough sites.update calls preserve it, and the UI correctly gates the field behind adapter === Adapter.Ssr.

No files require special attention.

Important Files Changed

Filename	Overview
src/lib/stores/sites.ts	Adds the shared FrameworkAdapterWithStartCommand type, resolving the previously noted duplicate-type issue across five files.
src/lib/stores/uploader.ts	Adds startCommand to uploadSiteDeployment signature and forwards it in the deployment payload; small refactor to extract deploymentPayload object is clean.
src/routes/(console)/project-[region]-[project]/sites/create-site/manual/+page.svelte	Correctly passes startCommand to both sites.create and uploader.uploadSiteDeployment, addressing the previously reported P1 gap.
src/routes/(console)/project-[region]-[project]/sites/site-[site]/settings/updateBuildSettings.svelte	SSR-gated start command input added with consistent null-coalescing on Reset disabled condition; startCommand included in isUntouched derived and update payload.
src/routes/(console)/project-[region]-[project]/sites/create-site/configuration.svelte	SSR-gated start command field added with null-coalescing guards applied consistently to all three Reset button conditions.
src/routes/(public)/sites/deploy/+page.svelte	Start command field and URL param forwarding added to the public deploy-button flow; startCommand is included in sites.create and piped through URL query params.
src/routes/(console)/project-[region]-[project]/settings/updateProtocols.svelte	CSS restructuring moves max-width: 36rem from .protocols-list to .protocol-list-content so the toolbar can expand full-width; wraps the divider in a container div.
src/routes/(console)/project-[region]-[project]/sites/site-[site]/settings/updateName.svelte	Passthrough update call now includes startCommand: site?.startCommand so the field is not silently cleared when name is updated.
src/routes/(console)/project-[region]-[project]/sites/site-[site]/settings/updateRuntimeSettings.svelte	Passthrough sites.update call now includes startCommand, preventing it from being dropped on runtime updates.
src/routes/(console)/project-[region]-[project]/sites/site-[site]/deployments/createGitDeploymentModal.svelte	Pre-existing site update call now preserves startCommand when connecting a repository for the first time before creating a Git deployment.

_{Reviews (3): Last reviewed commit: "added command in uploader" | Re-trigger Greptile}