[codex] add duplicati backup status to landingpage

[sidey79]

What changed

• Added a Duplicati status section to the landing page.
• Added a /duplicati/* path in Caddy so the landing page can reach the Duplicati status webhook without rewrites.
• The landing page now fetches the public Duplicati status endpoint and renders the latest backup state.

Why

• The landing page should expose the current backup status without needing to know individual backup jobs in detail.
• The Duplicati workflow already normalizes and stores the status in n8n, so the landing page can consume a single public JSON endpoint.

Impact

• Users visiting the landing page can see the latest Duplicati status directly.
• The implementation keeps the Duplicati-related URLs grouped under a dedicated path.

Validation

• Branch committed and pushed: feat/landing-backup-status
• Caddy and landing page changes reviewed in the repo diff
• No runtime tests were executed in this repo beyond the code integration already completed in n8n

[chatgpt-codex-connector]

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[sidey79]

@codex review

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Reviewed commit: 015e4ef855

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[sidey79]

@codex review

[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: ffa5992bc8

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Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

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[sidey79]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Swish!

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".