# Changelog

All notable changes to wpide-server will be documented in this file. Format
follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); versioning
is [SemVer](https://semver.org/spec/v2.0.0.html).

## [0.6.3] — 2026-05-26

### Changed
- **Request logging back to `!isDev` (silent in prod).** Was temporarily
  forced on to debug the live browser-direct tool round-trip with the
  plugin on Hostinger (see plugin 56.95/56.96). Now that browser-direct
  is verified end-to-end (744 ms tool round-trip from `mersaai.diretenders.com`),
  prod logs go quiet again — every 30s `/v1/health` from Docker's
  healthcheck no longer fills the log file.

### Kept
- The targeted diagnostic lines added in 0.6.2 stay in for future
  support work:
  - `browser-direct: awaiting tool result from browser` (orchestrator)
  - `browser-direct: tool result TIMED OUT after 90s` (orchestrator)
  - `tool_result POST received … matched:true|false` (runs route)
  These are low-volume and useful for diagnosing future host quirks.

## [0.6.2] — 2026-05-26

### Fixed
- **`z.coerce.boolean()` read every boolean env var as `true`.** `Boolean("false")`
  is `true` in JS, so `ALLOW_INSECURE_TLS=false`, `REQUIRE_LICENSE=false`, and
  `FREE_TIER_ACTIVE=false` were all silently `true`. Replaced with a `boolish()`
  parser that treats `0/false/no/off` as false and `1/true/yes/on` as true.
  This bit on the first real VPS deploy: TLS verification stayed disabled and
  license gating would have switched on unexpectedly.

### Added
- **Production deploy artifacts (`deploy/`).** `vps-bootstrap.sh` (Ubuntu prep:
  update, ufw, base tools) and `docker-compose.coolify.yml` (runs the container
  behind Coolify's existing Traefik proxy on the external `coolify` network, with
  Let's Encrypt labels). First live deploy: Contabo VPS → Coolify/Traefik →
  `https://api.qbirr.com`.

## [0.6.1] — 2026-05-26

### Fixed
- **SSE stream endpoint now sends CORS headers.** The `/v1/runs/:id/stream`
  reply is hijacked (raw), so the cors plugin didn't run on it. Added
  `access-control-allow-origin` (echoes request origin) so the plugin's
  browser-direct `EventSource` can open the stream cross-origin (browser
  on the WP site → server on another domain). Without this the browser
  blocked the stream.

## [0.6.0] — 2026-05-25 — Memory, teams, browser-direct tools

### Added
- **Server-side conversation memory (`orchestrator/memory.ts`).** Persists
  each run's user goal + final answer per `session_id`; recalls the last
  ~12 turns and merges (de-duplicated) into context on the next run. Runs
  now have continuity even when the plugin sends little history. (DB
  migration v3: `conversation_turns`.)
- **Multi-tenant teams (`accounts/teams.ts`, `routes/teams.ts`).** Orgs +
  members + roles; `POST/GET /v1/teams`, member add/remove. A member
  **inherits the org owner's subscription tier** (team owner pays once,
  seats share the tier) — wired into `resolveAccess`. (Migration v3:
  `orgs`, `org_members`, `subscriptions.org_id`.)
- **Browser-direct tool execution (cap-immune transport, server side).**
  `browser_tools: true` on a run makes the loop emit `tool_call` SSE
  events and await `POST /v1/runs/:id/tool_result` from the browser,
  instead of calling back into the plugin. Removes the long-lived request
  from the WP host entirely → works on any shared host. Relay mode
  (plugin callback) remains the default; this is additive. Proven
  end-to-end via test (tool_call emitted → result posted → run completed
  using the posted data).

### Notes
- The browser-direct **plugin JS** (browser opens EventSource + runs the
  tool via admin-ajax + POSTs the result) is the remaining client-side
  step; the server fully supports it now.

## [0.5.0] — 2026-05-25 — SaaS platform foundation

### Added
- **Accounts & auth.** Email+password (scrypt, no native deps), Google +
  GitHub OAuth (authorization-code flow), session JWT in an httpOnly
  cookie. `/v1/auth/{register,login,logout,me,set-password}` and
  `/v1/auth/oauth/:provider/{start,callback}`.
- **Licensing & subscriptions (no credits).** Each account gets a license
  key + a subscription row (tier `basic|pro|max`, status). The run path
  resolves the license → tier and gates on an active subscription
  (`REQUIRE_LICENSE`, default off in dev so local testing needs no
  account; `DEV_DEFAULT_TIER` applies when off).
- **Model routing by tier** (`routing/policy.ts`): tier sets the model
  ceiling — basic→flash, pro→+thinking, max→+pro-max — combined with
  mode/complexity. Explicit model picks are honored only within the tier,
  else downgraded. DeepSeek `thinking` param wired through.
- **Stripe billing** (`fetch`, no SDK): `/v1/billing/{checkout,portal,webhook}`
  with manual webhook signature verification; subscription state mirrored
  into the DB. Disabled cleanly when keys absent.
- **Dashboard** at `/app`: signup/login (email + Google + GitHub),
  license key with copy, plan + tier picker + manage-billing. Single
  inline HTML page, no build step.
- **DB migration v2:** users, oauth_identities, licenses, subscriptions,
  sites (site registry); runs gain user_id/tier/model.
- **Deploy:** `SETUP.md` operator checklist, `docker-compose.prod.yml` +
  `Caddyfile.prod` for a plain VPS (Coolify uses the Dockerfile directly).
  SQLite on a persistent volume for v1; Postgres is the documented
  scale-up path.

### Notes
- Credits/metering intentionally deferred — access is subscription-gated,
  tier gates models. Multi-tenant teams, server-side memory, and the
  browser-direct SSE transport remain as later sub-projects.

## [0.4.1] — 2026-05-25

### Fixed
- **Reasoning rendered one token per line in the chat.** The agentic loop
  was emitting a `thinking` event per reasoning token; the plugin relays
  each as a `thought` event, and the browser appends one list item per
  thought — so each reasoning token landed on its own line. Now the loop
  accumulates `reasoning_content` per step and emits a single `thinking`
  event when the step's LLM call finishes (matches the local
  orchestrator's one-thought-per-step model). Content tokens still stream
  individually into the live bubble.

## [0.4.0] — 2026-05-25

### Added
- **SSE token streaming.** `GET /v1/runs/:run_id/stream` streams a run's
  live events (`token`, `thinking`, `tool_call`, `tool_result`, `status`,
  `done`, `error`, `end`) with `?since=<seq>` resume. Backed by a per-run
  event buffer in the registry (`addEvent`).
- `OpenAIClient.chatStream()` — streaming chat completions over fetch:
  parses SSE token deltas, accumulates `content` / `reasoning_content` /
  `tool_calls`, returns the same shape as `chat()`. Connect-only retry
  (safe to retry before any token; never mid-stream).
- The agentic loop now uses `chatStream` and emits token/tool events into
  the run's buffer as they happen.

### Fixed
- **DeepSeek v4 thinking mode HTTP 400** — the loop now echoes the
  assistant message's `reasoning_content` back on the next turn after a
  tool call, as DeepSeek v4 requires. (`chat()` and `chatStream()` both
  capture the field; the loop re-sends it.)

## [0.3.0] — 2026-05-25

### Added
- **Async run model — removes the synchronous timeout ceiling.**
  - `POST /v1/runs/start` registers a run, kicks off the orchestrator in
    the background, and returns `{ run_id, session_id }` immediately.
  - `GET /v1/runs/:run_id/status` reports live progress
    (`status`, `steps_done`, `tools_used`, `elapsed_ms`, `partial_content`)
    and the full PHP-shape `response` once finished.
  - In-memory run registry (`src/orchestrator/registry.ts`) with a 30-min
    TTL for finished runs. `process_request` shares its step/tool arrays
    with the registry so status reflects progress as it happens.
  - Old synchronous `POST /v1/runs` retained for non-browser callers.
- **Built-in server-side `wait` tool** — lets agents pace long-running
  diagnostics without a DB `SLEEP()` (SQLite has none). Handled in-loop,
  never calls back to the plugin. Max 30s per call.
- LLM chat retry hardened: 6 attempts, 20s per-attempt timeout (fails
  fast on a hung VPN connection and retries), abort/timeout treated as
  retryable. Step cap raised 25 → 40.
- `AGENT_STEP tool_call → <name>` logged at info level for live flow
  visibility.

## [0.2.1] — 2026-05-25

### Added
- xAI (Grok) provider client — OpenAI-compatible base URL `https://api.x.ai/v1`.
- DeepSeek provider client — base URL `https://api.deepseek.com/v1`.
- Provider auto-routing in `pickProvider()`: explicit override → model-name
  prefix (`deepseek*`, `grok*`, `gpt-*`) → first configured key
  (deepseek → xai → openai). `defaultModelFor()` picks a sane model per
  provider.
- `ALLOW_INSECURE_TLS` (default on in dev) — skips outbound TLS
  verification for machines behind a VPN/MITM whose root CA Node doesn't
  trust. Set off in prod.
- Tool-manifest sanitizer (`src/tools/manifest.ts`) — coerces PHP's empty
  `[]` to `{}` where objects are required and strips null values, so
  strict validators (DeepSeek) stop rejecting the plugin's 95 tool
  schemas with HTTP 400.
- LLM chat calls now retry up to 3× with backoff on network errors
  (connect timeout, DNS, TLS) and 5xx/429 — rides through flaky-VPN
  blips. 4xx are treated as real errors and not retried.
- Detailed logging on tool-exec callback failures (URL, status, headers,
  body length) to diagnose cross-machine / rewrite issues.

### Changed
- Server binds to `0.0.0.0` by default (was `127.0.0.1`) so other LAN
  machines can reach it. Default port `3017`.
- Default model is now `deepseek-chat`.

## [0.2.0] — 2026-05-21

### Added
- `GET /` root route returns an API directory (name, version, endpoint
  hints) — friendlier than the previous 404 when poking around in a
  browser.
- `POST /v1/runs` — main orchestrator entrypoint. Accepts
  `{ goal, context, options, tools_manifest, callback_url, callback_secret, license_key, site_url }`
  and returns the exact response shape PHP's `wp_ide_process_agentic()`
  uses: `{ success, content, tool_results, execution: { run_id,
  session_id, mode, steps, status_messages, ... }, approval_payload }`.
- `GET /v1/runs/:run_id` — fetch a stored run record.
- Greeting + simple paths fully working. Greetings need no LLM call;
  simple invokes OpenAI chat/completions (default `gpt-4o-mini`).
  Agentic path is a placeholder that returns a "step 5" message.
- Orchestrator router (`src/orchestrator/router.ts`) — port of
  `WP_IDE_AI_Router::classify`; cheap regex/keyword heuristics that pick
  greeting / simple / agentic without an LLM call.
- OpenAI client over fetch (`src/providers/openai.ts`) — no SDK
  dependency. Provider router (`src/providers/index.ts`) dispatches by
  model name; Anthropic / xAI plug in here in later steps.
- Runs table CRUD (`src/db/runs.ts`) — persists every run with status
  transitions so a future status endpoint can answer "what happened".

### Notes
- `OPENAI_API_KEY` is read from `.env` on boot. Without it the simple
  path returns a clear actionable error in the standard response shape;
  the greeting path still works because it doesn't call any LLM.

## [0.1.0] — 2026-05-21

### Added
- Initial Fastify scaffold (Node 20, TypeScript, ESM).
- `GET /v1/health` returns name, version, uptime, Node version, timestamp.
- SQLite via `better-sqlite3` as the dev database; WAL mode + foreign keys
  enabled. Postgres URL recognised for later Coolify deploy but not yet
  wired.
- Initial schema: `schema_version`, `runs` tables (more added per
  milestone).
- Zod-validated env loader, pino logger, CORS, graceful shutdown.
- `start-dev.bat` for one-command Windows dev startup.
- `Dockerfile` for future Coolify deployment (not used locally).
- Optional `Caddyfile` for local TLS via `wpide.local`.