Competitive analysis: existing project boards

[jlwaugh]

Compare existing project board tools against v1's positioning.

Tools to cover: Linear, Notion, GitHub Projects, Plane, Trello,
Asana. Add others if the agent's research surfaces them as
relevant.

Per tool:

• (a) What they do well. Concrete features that v1 should
  consider matching or beating.
• (b) What they don't do well. Friction points or absent
  features.
• (c) Where v1 is differentiated. v1's positioning is
  agent-native + GitHub-substrate-respecting + OSS-deployable.
  Identify where each competitor falls short on at least one of
  these axes.

Output a "must match or beat" list per competitor — two or
three features each that v1 should benchmark against.

Soft input to: any UI track issue (#30–#35) where competitive
parity matters, plus #44 (agent-native UX patterns) for the
agent-handling subset.

Output: docs/research/0002-competitive-analysis.md