Release cli/v0.9.0

Major file update improvements 📄

• Much better accuracy for updates to existing files.
• Plandex is much less likely to screw up braces, parentheses, and other code structures.
• Plandex is much less likely to mistakenly remove code that it shouldn't.

Major improvements to long plans with many steps 🛤️

• Plandex's 'working memory' has been upgraded. It is now much better at working through very long plans without skipping tasks, repeating tasks it's already done, or otherwise losing track of what it's doing.

'plandex diff' command ⚖️

• New plandex diff command shows pending plan changes in git diff format.

Plans can be archived 🗄️

• If you aren't using a plan anymore, but you don't want to delete it, you can now archive it.
• Use plandex archive (or plandex arc for short) to archive a plan.
• Use plandex plans --archived (or plandex plans -a) to see archived plans in the current directory.
• Use plandex unarchive (or plandex unarc) to restore an archived plan.

Custom models!! 🧠

Use Plandex with models from OpenRouter, Together.ai, and more

• Use plandex models add to add a custom model and use any provider that is compatible with OpenAI, including OpenRouter.ai, Together.ai, Ollama, Replicate, and more.
• Anthropic Claude models are available via OpenRouter.ai. Google Gemini 1.5 preview is also available on OpenRouter.ai but was flakey in initial testing. Tons of open source models are available on both OpenRouter.ai and Together.ai, among other providers.
• Some built-in models and model packs (see 'Model packs' below) have been included as a quick way to try out a few of the more powerful model options. Just use plandex set-model to try these.
• You can use a custom model you've added with plandex set-model, or add it to a model pack (see 'Model packs' below) with plandex model-packs create. Delete custom models you've added with plandex models delete.
• The roles a custom model can be used for depend on its OpenAI compatibility.
• Each model provider has an ApiKeyEnvVar associated with it, like OPENROUTER_API_KEY, TOGETHER_API_KEY, etc. You will need to have the appropriate environment variables set with a valid api key for each provider that you're using.
• Because all of Plandex's prompts have been tested against OpenAI models, support for new models should be considered experimental.
• If you find prompting patterns that are effective for certain models, please share them on Discord (https://discord.gg/plandex-ai) or GitHub (https://github.com/plandex-ai/plandex/discussions) and they may be included in future releases.

Model packs 🎛️

• Instead of changing models for each role one by one, a model packs let you switch out all roles at once.
• Use plandex model-packs create qto create your own model packs.
• Use plandex model-packs to list built-in and custom model packs.
• Use plandex set-model to load a model pack.
• Use plandex model-packs delete to remove a custom model pack.

Model defaults ⚙️

• Instead of only changing models on a per-plan basis, you can set model defaults that will apply to all new plans you start.
• Use plandex models default to see default model settings and plandex set-model default to update them.

More commands 💻

• plandex summary to see the latest plan summary
• plandex rename to rename the current plan

Quality of life improvements 🧘‍♀️

• Descriptive top-line for plandex apply commit messages instead of just "applied pending changes".
• Better message in plandex log when a single piece of context is loaded or updated.
• Abbreviate really long file paths in plandex ls.
• Changed OPENAI_ENDPOINT env var to OPENAI_API_BASE, which is more standardized. OPENAI_ENDPOINT is still quietly supported.
• guides/ENV_VARS.md now lists environment variables you can use with Plandex (and a few convenience variables have been addded) - thanks @knno! → #94

Bug fixes 🐞

• Fix for potential crash in plandex changes TUI.
• Fixes for some rare potential deadlocks and conflicts when building a file or stopping a plan stream.