docs: alias tables now accessible via read-only storage (persisted alias views)

[MonikaFeigler]

Summary

• storage/tables/index.md — Added explanation that alias tables are automatically materialized as database VIEWs, making them accessible in workspaces and transformations via read-only storage access without any input mapping configuration. Notes that filtered aliases are supported (WHERE clause enforced in the VIEW) and that alias VIEWs are mirrored to linked bucket projects.
• transformations/mappings/index.md — Removed the limitation stating read-only input mappings cannot access alias tables; replaced with positive statement that aliases (including filtered and linked-bucket aliases) are fully accessible.
• workspace/index.md — Same update as mappings — alias tables including filtered ones are accessible via read-only input mappings in workspaces.
• transformations/snowflake-plain/index.md — Updated the Bucket Objects for Read-Only Input Mapping section accordingly.
• catalog/index.md — Updated two places: (1) the sharing constraint now correctly states filtered aliases are shared as VIEWs with the WHERE clause enforced; (2) removed the "no filter" requirement from the "Adding new tables to an existing shared bucket" instructions.

Context

Previously, alias tables were metadata-only — no physical database object existed, so they were invisible to workspaces, transformations using read-only input mapping, and linked bucket projects. With the Persisted Alias Views feature, every qualifying alias is automatically materialized as a database VIEW, making aliases first-class citizens in storage.

Test plan

• Verify alias table is visible and queryable in a workspace via read-only storage access
• Verify filtered alias (e.g. WHERE status = 'active') is accessible via read-only input mapping in a transformation
• Verify alias from a linked bucket is accessible in the destination project

🤖 Generated with Claude Code

[matyas-jirat-keboola]

@keboola-pr-reviewer review

[matyas-jirat-keboola]

@keboola-pr-reviewer review

Dismissing prior approval — superseded by a fresh review on this PR.

[matyas-jirat-keboola]

@keboola-pr-reviewer review

[keboola-pr-reviewer]

Verdict: needs_human (risk 2/5) · profile docs

This PR introduces substantive product-behaviour claims that require human confirmation per policy section 2.

Concerns:

• storage/tables/index.md: New paragraph asserts alias-materialisation and mirroring product behaviour — needs product-team confirmation.
• catalog/index.md: Constraint rewritten to claim filtered aliases share as VIEWs — factual claim requires verification.
• storage/tables/index.md: New link to /transformations/mappings/#read-only-input-mapping anchor cannot be verified from the diff alone.

Suggested reviewers: @keboola/docs

[jirkasemmler]

@zajca pls az pujde ven changelog, tak nezapomen i tady tu dokumentaci. thx