fix(recipes): give ollama (and the generator) a Linux curl install path

[noahhyden]

The bug

ollama only had homebrew (macOS) + winget (Windows) install methods. On a plain Linux box with no Homebrew, every install guard fails and bootstrap dead-ends with no method. Ollama's canonical Linux install — curl -fsSL https://ollama.com/install.sh | sh — had nowhere to live.

Root cause: the generator, not just the YAML

recipes/ollama.yaml is generated from a seed in scripts/recipe_data.py, and scripts/gen_recipes.py only knew brew/winget/language-manager methods. So any Linux-only-via-curl tool has the same hole, and a hand-edit to ollama.yaml would be clobbered on the next --rewrite.

Fix

• Add a reusable curl install-method type to the generator: a curl seed field (the install-script URL) renders curl -fsSL <url> | sh.
• Emitted last in the preference order — after winget too, since Windows also ships curl — so it only fires when no managed installer matches (e.g. plain Linux).
• Wired into both install and update (re-running the script upgrades to latest).
• Seeded on ollama; regenerated with --rewrite (only ollama.yaml drifted — the other 482 rows render byte-identical, so no hand-curation touched).

Verification

• On this Linux host (no brew, no winget, has curl): erbina now selects curl -fsSL https://ollama.com/install.sh | sh for both install and update.
• lint_recipes.py: all 520 valid.
• pytest: 3620 passed, 511 skipped.

🤖 Generated with Claude Code