Fix deployment upload archive validation and queue state

[HarshMN2345]

What does this PR do?

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[greptile-apps]

Greptile Summary

• Centralises deployment archive validation into getInvalidDeploymentArchiveReason (enforces .tar.gz-only), applies it reactively in all four upload pages, and narrows Upload.Dropzone accepted extensions from ['gz', 'tar'] to ['gz'].
• Refactors uploader.ts to add per-kind group state (storage / deployments) with independent open/close visibility, a stable clientId for queue identity, and a shared uploadDeployment helper that correctly wires onProgress for both site and function deployments.
• The handleInvalid fallback in create-site/manual/+page.svelte lost its native-event file extraction, which causes a generic "Invalid file" toast instead of a specific message when the Dropzone's own extension filter rejects a file.

Confidence Score: 4/5

Safe to merge with one minor UX regression in the site-creation page's invalid-file error messaging.

Only P2 findings remain. The core logic (progress tracking, queue identity, archive validation) is correctly implemented. The single regression (wrong toast message for Dropzone-native rejected files) is a non-critical UX issue.

src/routes/(console)/project-[region]-[project]/sites/create-site/manual/+page.svelte — handleInvalid fallback path.

Important Files Changed

Filename	Overview
src/lib/helpers/files.ts	Adds getInvalidDeploymentArchiveReason helper that centralises .tar.gz-only and size validation; maxSize guard now correctly uses !== undefined instead of a falsy check.
src/lib/stores/uploader.ts	Major refactor: adds per-group state (storage / deployments), a clientId for stable identity, and a shared uploadDeployment helper that properly wires onProgress; startCommand is silently dropped from site deployments (previously flagged).
src/lib/components/uploadBox.svelte	Rewritten from using Upload.Box to a custom grouped layout; shows per-group open/close controls and per-file status icons; no progress percentage is displayed (intentional per PR screenshot).
src/routes/(console)/project-[region]-[project]/sites/create-site/manual/+page.svelte	Adds reactive archive validation, removes startCommand from upload call, and narrows Dropzone to gz only; the handleInvalid fallback path now queries the bound files variable instead of the native DOM event, which can produce a generic error message when the Dropzone itself rejects a file.
src/routes/(console)/project-[region]-[project]/functions/create-function/manual/+page.svelte	Adds reactive archive validation via getInvalidDeploymentArchiveReason, narrows accepted extensions to ['gz'], and scopes upload-file lookup by kind.
src/routes/(console)/project-[region]-[project]/functions/function-[function]/(modals)/createManual.svelte	Adds reactive archive validation and narrows Upload.Dropzone to ['gz'] extensions only.
src/routes/(console)/project-[region]-[project]/sites/site-[site]/deployments/createManualDeploymentModal.svelte	Adds reactive archive validation and narrows Upload.Dropzone to ['gz'] extensions only.
src/routes/(console)/project-[region]-[project]/storage/bucket-[bucket]/+page.svelte	Scopes the isUploading check to kind === 'storage' files only, fixing false positives when deployment uploads are in progress.

_{Reviews (2): Last reviewed commit: "fix: restore deployment upload progress" | Re-trigger Greptile}

[Meldiron]

Can you try to upload something like .png.gz? If that will work, I think thats wrong. Curious if tere is any way to be more specific. If not by inpu itself, maybe by JS implementation

[HarshMN2345]

Upload.Dropzone only supports filtering by extension, so ['gz'] is the closest we can get there. That still allows files like .png.gz, so I added a check in JS (file.name.endsWith('.tar.gz')) after selection to make sure only .tar.gz files are accepted.