docs(temporal): draft the co-marketing blog post

[dawidaksamski]

Temporal co-marketing blog draft

Draft of the guest post for temporal.io/blog, plus the screenshots it
uses and a shot list documenting how they were produced.

What's in it

• docs/blog/temporal-co-marketing-draft.md: ~1,400 words in Temporal's
  partner-post pattern (developer problem, integration, Temporal UI
  screenshots). Bylined to Dawid, team voice.
• docs/blog/temporal-co-marketing-shots.md: run metadata (workflow id,
  Temporal 1.29.3, UI 2.53.1, TS SDK 1.23.0, model endpoint, commit) and
  what each image shows.
• Three PNGs from a single run, execution-a02ad048: the canvas after the
  run, the Compact Event History with the six node labels as Summaries,
  and the ActivityTaskScheduled detail for "Classify Ticket" showing the
  10 min / 2 attempt defaults. The hero is the canvas and history crops
  side by side; neither half is edited.

The argument

1. Temporal solves reliability but ships nothing a product user can look
   at or change.
2. In Workflow Builder the diagram is data. Rerouting is a save, not a
   deploy. In-flight runs keep the definition they started with.
3. @workflowbuilder/temporal interprets the graph inside the Workflow:
   waves, one Activity per node, nextPort routing and pruning,
   errorPolicy, sequenced events. Executors and store stay yours.
4. Events come back through the store port and the canvas paints the run.
5. Labels as Summaries make Event History and the canvas read the same.

Review notes

• The package is written up as already published on npm, per the
  decision to time the post to the release. The install line and the
  npm link will be dead until then.
• Code snippets are trimmed copies of apps/execution-worker/.../worker.ts,
  workflows.ts, and the profile example in packages/temporal/README.md.
• The claim that in-flight runs keep their definition rests on the graph
  travelling as workflow input, which the plugin README states.
• No "no-code" / "low-code" phrasing, no partner-status claims, Keylane
  not named.