Fixes v5 profile and bucket docs.
- **The default `preferences` bucket can't be replaced.** It's always part of the effective set. Custom buckets are added alongside it, `deleteBuckets` can't remove it, and defining a bucket named `preferences` only overrides its description.
- **No `[Summary]`/`[Recent]` labels in v5.** Only v4 adds them. Summaries are now told apart by an `aggregated_` id, and individual `dynamic` entries keep their `[YYYY-MM-DD]` date. Example responses are updated, and the migration snippet calls out the change.
- **Name clashes.** A namespace bucket with an org bucket's name returns `409`; the docs said the org's definition silently wins.
- **Smaller fixes:**
- `filterPrompt` → `organizationalContext`.
- An invalid `organization.update` example (stray `},`).
- OAuth redirect URIs now use `/v3/connections/auth/callback/{provider}`.
- The v4 `include` example in the migration snippet.
- Broken anchors and links.
Checked against the current API and the published SDKs (TS 5.0.1, Python 5.0.0). Legacy v3/v4 docs are unchanged apart from factual fixes.
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Rewrites 339 TypeScript calls across 50 pages from the rc.5 `method({ namespace, body })` form to the shipped `method(namespace, { ... })` form, and aligns field names with the live v5 spec: `attach` to `include`, `authUrl` to `authorization`, `lastSync` to `latestRun`, `deletedCount` to `count`, and the paginated `namespaces.list()`.
Renames container tags to namespaces across concepts, connectors, integrations and snippets. The namespace pages keep container tag in the description, search keywords and a rename note so old searches still land, and the v3 reference page points at v5.
The migration guide's SDK table now covers both 5.0.0 SDKs, and the SDK integration page uses the real client options (`baseUrl`, `timeoutInSeconds`, `maxRetries`) and error classes.
