Removed PLAN.md

PLAN.md

@@ -1,88 +0,0 @@
-# Architecture Plan
-
-This document is the baseline architecture guide referenced by `AGENTS.md` and
-`CLAUDE.md`. It records the intended dependency direction and the migration
-target for keeping the project modular as providers, clients, and smoke tests
-grow.
-
-## Current Product Shape
-
-`free-claude-code` is an Anthropic-compatible proxy with optional messaging
-workers:
-
-- `api/` owns the HTTP routes, request orchestration, model routing, auth, and
-  server lifecycle.
-- `providers/` owns upstream model adapters, request conversion, stream
-  conversion, provider rate limiting, and provider error mapping.
-- `messaging/` owns Discord and Telegram adapters, command handling, tree
-  threading, session persistence, transcript rendering, and voice intake.
-- `cli/` owns package entrypoints and managed Claude CLI subprocess sessions.
-- `config/` owns environment-backed settings and logging setup.
-- `smoke/` owns opt-in product smoke scenarios and the public coverage
-  inventory used by contract tests.
-
-## Intended Dependency Direction
-
-The repo should preserve this dependency order:
-
-```mermaid
-flowchart TD
-    config[config] --> api[api]
-    config --> providers[providers]
-    config --> messaging[messaging]
-    core[core.anthropic] --> api
-    core --> providers
-    core --> messaging
-    providers --> api
-    cli --> messaging
-    messaging --> api
-```
-
-The practical rule is simpler than the graph: shared protocol helpers belong in
-neutral core modules, not under a provider package. Provider adapters may depend
-on the neutral protocol layer, but API and messaging code should not import
-provider internals.
-
-## Target Boundaries
-
-- `core/anthropic/`: Anthropic protocol helpers, stream primitives, content
-  extraction, token estimation, user-facing error strings, and request
-  conversion utilities shared across API, providers, messaging, and tests.
-- `api/runtime.py`: application composition, optional messaging startup,
-  session store restoration, and cleanup ownership.
-- `providers/`: provider descriptors, credential resolution, transport
-  factories, scoped rate limiters, upstream request builders, and stream
-  transformers.
-- `messaging/`: platform-neutral orchestration split from command dispatch,
-  rendering, voice handling, and persistence.
-- `cli/`: typed Claude CLI runner config, subprocess management, and packaged
-  user-facing entrypoints.
-
-## Smoke Coverage Policy
-
-Default CI stays deterministic and runs `uv run pytest` against `tests/`.
-Product smoke lives under `smoke/` and is enabled with `FCC_LIVE_SMOKE=1`.
-Smoke runs should use `-n 0` unless a scenario is explicitly known to be safe
-under xdist.
-
-Live smoke has two valid skip classes:
-
-- `missing_env`: credentials, local services, binaries, or explicit opt-in flags
-  are absent.
-- `upstream_unavailable`: real providers, bot APIs, or local model servers are
-  unreachable.
-
-`product_failure` and `harness_bug` are regressions. When a provider is
-explicitly selected by `FCC_SMOKE_PROVIDER_MATRIX`, missing configuration should
-fail instead of being silently skipped.
-
-## Refactor Rules
-
-- Keep public request/response shapes stable while moving internals.
-- Complete module migrations in one change: update imports to the new owner and
-  remove old compatibility shims unless preserving a published interface is
-  explicitly required.
-- Lock behavior with focused tests before moving shared protocol or runtime
-  code.
-- Run checks in this order: `uv run ruff format`, `uv run ruff check`,
-  `uv run ty check`, `uv run pytest`.