Delete the stdio MCP server now that the API serves /mcp directly

src/Novelly.Mcp was a separate stdio process, unbuilt by CI, that
looped back over HTTP to the same REST API the previous commit's /mcp
endpoint now calls in-process. Nothing else referenced it (not CI, not
Docker, not the AppHost), so removal is just the project, its solution
entry, and scripts/publish-mcp.sh.

Updates .mcp.json / .mcp.json.example to the type: http form, fixes
.claude/agents/outline-importer.md's already-stale tool references
(list_projects/create_project/etc. never existed; the real names are
list_novels/create_novel/etc.), and rewrites README + CLAUDE.md's
description of the MCP surface and how to verify it at runtime.

scripts/publish-mcp.sh

@@ -1,15 +0,0 @@
-#!/usr/bin/env bash
-# Rebuilds the standalone Novelly.Mcp binary that Claude Code (or Claude Desktop) spawns
-# per .mcp.json. Aspire does not run or manage this process, so nothing else rebuilds it —
-# run this after pulling changes that touch src/Novelly.Mcp, or the MCP server silently
-# keeps serving whatever was published last.
-set -euo pipefail
-cd "$(dirname "${BASH_SOURCE[0]}")/.." && source ./scripts/ci/lib.sh
-cd "$CI_ROOT"
-
-ensure_dotnet
-
-log "Publishing Novelly.Mcp to ./mcp-server"
-dotnet publish src/Novelly.Mcp -c Release -o ./mcp-server
-
-log "Done. Reconnect the MCP server (e.g. /mcp in Claude Code) to pick up the new build."