feat: Token Broker infrastructure (HRT-205)

- PostgreSQL dedie Docker (postgres:16-alpine, port 5434)
- 6 tables: api_tokens, refresh_tokens, token_audit_log, clients, providers, token_usage
- Init SQL + Flask init_db() mis a jour
- Systemd service token-broker (port 8783)
- Deploy script infra/scripts/deploy_token_broker.sh
- Docker compose broker (docker-compose.broker.yml)
- Health check OK: status=ok, database=connected

Co-Authored-By: Paperclip <noreply@paperclip.ing>

infra/postgres/token_broker_init.sql

@@ -0,0 +1,94 @@
+-- Token Broker PostgreSQL init script
+-- 6 tables: api_tokens, refresh_tokens, token_audit_log, clients, providers, token_usage
+
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+CREATE TABLE IF NOT EXISTS api_tokens (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id         INTEGER NOT NULL,
+    name            TEXT NOT NULL DEFAULT 'default',
+    token_hash      TEXT NOT NULL UNIQUE,
+    token_prefix    TEXT NOT NULL,
+    scopes          TEXT[] DEFAULT '{}',
+    is_active       BOOLEAN NOT NULL DEFAULT TRUE,
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    expires_at      TIMESTAMPTZ,
+    last_used_at    TIMESTAMPTZ,
+    metadata        JSONB DEFAULT '{}'
+);
+
+CREATE TABLE IF NOT EXISTS refresh_tokens (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id         INTEGER NOT NULL,
+    token_hash      TEXT NOT NULL UNIQUE,
+    token_prefix    TEXT NOT NULL,
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    expires_at      TIMESTAMPTZ NOT NULL,
+    revoked         BOOLEAN NOT NULL DEFAULT FALSE,
+    revoked_at      TIMESTAMPTZ,
+    replaced_by     UUID
+);
+
+CREATE TABLE IF NOT EXISTS token_audit_log (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id         INTEGER,
+    action          TEXT NOT NULL,
+    token_prefix    TEXT,
+    ip_address      TEXT,
+    user_agent      TEXT,
+    details         JSONB DEFAULT '{}',
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS clients (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    client_id       TEXT NOT NULL UNIQUE,
+    client_secret   TEXT NOT NULL,
+    name            TEXT NOT NULL,
+    description     TEXT DEFAULT '',
+    redirect_uris   TEXT[] DEFAULT '{}',
+    scopes          TEXT[] DEFAULT '{}',
+    is_active       BOOLEAN NOT NULL DEFAULT TRUE,
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS providers (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name            TEXT NOT NULL UNIQUE,
+    provider_type   TEXT NOT NULL DEFAULT 'oauth2',
+    issuer_url      TEXT,
+    client_id       TEXT,
+    client_secret   TEXT,
+    scopes          TEXT[] DEFAULT '{}',
+    config          JSONB DEFAULT '{}',
+    is_active       BOOLEAN NOT NULL DEFAULT TRUE,
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS token_usage (
+    id              BIGSERIAL PRIMARY KEY,
+    user_id         INTEGER NOT NULL,
+    token_id        UUID,
+    action          TEXT NOT NULL DEFAULT 'verify',
+    endpoint        TEXT,
+    status          TEXT NOT NULL DEFAULT 'success',
+    response_time_ms INTEGER,
+    ip_address      TEXT,
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_api_tokens_user_id ON api_tokens(user_id);
+CREATE INDEX IF NOT EXISTS idx_api_tokens_token_hash ON api_tokens(token_hash);
+CREATE INDEX IF NOT EXISTS idx_refresh_tokens_user_id ON refresh_tokens(user_id);
+CREATE INDEX IF NOT EXISTS idx_refresh_tokens_token_hash ON refresh_tokens(token_hash);
+CREATE INDEX IF NOT EXISTS idx_token_audit_log_user_id ON token_audit_log(user_id);
+CREATE INDEX IF NOT EXISTS idx_token_audit_log_created_at ON token_audit_log(created_at);
+CREATE INDEX IF NOT EXISTS idx_clients_client_id ON clients(client_id);
+CREATE INDEX IF NOT EXISTS idx_providers_name ON providers(name);
+CREATE INDEX IF NOT EXISTS idx_token_usage_user_id ON token_usage(user_id);
+CREATE INDEX IF NOT EXISTS idx_token_usage_created_at ON token_usage(created_at);
+
+GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO token_broker;
+GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO token_broker;