Three concrete fixes against today's user feedback.
- Flows that take binary inputs (extract / extract-summarize /
…) work from the Flows tab. The run-flow input dialog now
accepts the same `@/path/to/file` syntax `fai run --input`
uses on the CLI: any value beginning with `@` is read as
bytes and sent as a binary Payload; plain values still flow
through as text. The dialog hint copy and the example
placeholder reflect the new syntax. File-read failures
surface as a SnackBar before the run dialog opens, so a
typo in the path doesn't reach the hub. Threaded through
`_FlowRunDialog` and `HubService.runSavedFlow`, which both
carry separate `textInputs` and `fileInputs` maps now and
forward to the SDK's mixed-mode runSavedFlow (v0.14.0).
- The Welcome doc-reader's error path uses `FaiErrorBox` so
the actual underlying error is selectable + copy-to-
clipboard via the existing widget. Plus the loader throws
a richer error string that names *both* attempted asset
paths (`<slug>_<lang>.md` and the EN fallback) and the
underlying exception each, so the operator can paste a
diagnostic into a chat without us having to ship a
separate "how to read Flutter asset errors" doc.
- Doctor's empty Services panel had a horizontal RenderFlex
overflow at narrow widths because the long mono-spaced
hint ("add to ~/.fai/config.yaml under services:") and
the leading icon+text both demanded full intrinsic width
in a single Row. Now wraps via a `Wrap` widget so the
hint flows to a second line on narrow viewports and stays
in the same row when there's space.
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>