Rename .pi to .feynman, rename citation agent to verifier, add website, skills, and docs

- Rename project config dir from .pi/ to .feynman/ (Pi supports this via piConfig.configDir)
- Rename citation agent to verifier across all prompts, agents, skills, and docs
- Add website with homepage and 24 doc pages (Astro + Tailwind)
- Add skills for all workflows (deep-research, lit, review, audit, replicate, compare, draft, autoresearch, watch, jobs, session-log, agentcomputer)
- Add Pi-native prompt frontmatter (args, section, topLevelCli) and read at runtime
- Remove sync-docs generation layer — docs are standalone
- Remove metadata/prompts.mjs and metadata/packages.mjs — not needed at runtime
- Rewrite README and homepage copy
- Add environment selection to /replicate before executing
- Add prompts/delegate.md and AGENTS.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

website/src/content/docs/reference/slash-commands.md

@@ -0,0 +1,41 @@
+---
+title: Slash Commands
+description: Repo-owned REPL slash commands
+section: Reference
+order: 2
+---
+
+This page documents the slash commands that Feynman owns in this repository: prompt templates from `prompts/` and extension commands from `extensions/research-tools/`.
+
+Additional slash commands can appear at runtime from Pi core and bundled packages such as subagents, preview, session search, and scheduling. Use `/help` inside the REPL for the live command list instead of relying on a static copy of package-provided commands.
+
+## Research Workflows
+
+| Command | Description |
+| --- | --- |
+| `/deepresearch <topic>` | Run a thorough, source-heavy investigation on a topic and produce a durable research brief with inline citations. |
+| `/lit <topic>` | Run a literature review on a topic using paper search and primary-source synthesis. |
+| `/review <artifact>` | Simulate an AI research peer review with likely objections, severity, and a concrete revision plan. |
+| `/audit <item>` | Compare a paper's claims against its public codebase and identify mismatches, omissions, and reproducibility risks. |
+| `/replicate <paper>` | Plan or execute a replication workflow for a paper, claim, or benchmark. |
+| `/compare <topic>` | Compare multiple sources on a topic and produce a source-grounded matrix of agreements, disagreements, and confidence. |
+| `/draft <topic>` | Turn research findings into a polished paper-style draft with equations, sections, and explicit claims. |
+| `/autoresearch <idea>` | Autonomous experiment loop — try ideas, measure results, keep what works, discard what doesn't, repeat. |
+| `/watch <topic>` | Set up a recurring or deferred research watch on a topic, company, paper area, or product surface. |
+
+## Project & Session
+
+| Command | Description |
+| --- | --- |
+| `/log` | Write a durable session log with completed work, findings, open questions, and next steps. |
+| `/jobs` | Inspect active background research work, including running processes and scheduled follow-ups. |
+| `/help` | Show grouped Feynman commands and prefill the editor with a selected command. |
+| `/init` | Bootstrap AGENTS.md and session-log folders for a research project. |
+
+## Setup
+
+| Command | Description |
+| --- | --- |
+| `/alpha-login` | Sign in to alphaXiv from inside Feynman. |
+| `/alpha-status` | Show alphaXiv authentication status. |
+| `/alpha-logout` | Clear alphaXiv auth from inside Feynman. |