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>

tests/pi-web-access.test.ts

@@ -21,7 +21,7 @@ test("loadPiWebAccessConfig returns empty config when Pi web config is missing",
 test("getPiWebAccessStatus reads Pi web-access config directly", () => {
 	const root = mkdtempSync(join(tmpdir(), "feynman-pi-web-"));
 	const configPath = getPiWebSearchConfigPath(root);
-	mkdirSync(join(root, ".pi"), { recursive: true });
+	mkdirSync(join(root, ".feynman"), { recursive: true });
 	writeFileSync(
 		configPath,
 		JSON.stringify({