Add utils package with Web Crypto password hashing

- Create @reviq/utils package with PBKDF2-SHA256 password hashing
  compatible with Cloudflare Workers (uses crypto.subtle)
- Update api-server and CLI to use new utils package for consistent
  password hashing format across the codebase
- Add pino logging to api-server for better request debugging
- Make login request tokens cryptographically secure base58 strings
  instead of database IDs
- Add migration to make login_requests.token non-nullable with unique
  constraint
- Fix RPCLink URL construction for client-side API calls
- Add db:codegen script to root package.json

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

db/schema.sql

@@ -1,4 +1,4 @@
-\restrict Trg340CgUaHnQsqUDFepZ6WnV8O2lwkEMfhS9CGxBAJbWOA8qTnig08shTgrMcE
+\restrict NwR9NcSOK9D25dGgvUNdLvsNphDACAXsvkQ5NSmhpf6sLcFR570yQ96lhgCbCXf
 
 -- Dumped from database version 17.7
 -- Dumped by pg_dump version 17.7
@@ -114,7 +114,7 @@ CREATE TABLE public.login_requests (
     id bigint NOT NULL,
     user_id integer NOT NULL,
     email text NOT NULL,
-    token text,
+    token text NOT NULL,
     device_fingerprint text,
     ip_address text,
     city text,
@@ -652,6 +652,14 @@ ALTER TABLE ONLY public.login_requests
     ADD CONSTRAINT login_requests_token_key UNIQUE (token);
 
 
+--
+-- Name: login_requests login_requests_token_unique; Type: CONSTRAINT; Schema: public; Owner: -
+--
+
+ALTER TABLE ONLY public.login_requests
+    ADD CONSTRAINT login_requests_token_unique UNIQUE (token);
+
+
 --
 -- Name: org_invites org_invites_org_id_email_key; Type: CONSTRAINT; Schema: public; Owner: -
 --
@@ -856,6 +864,13 @@ CREATE INDEX idx_email_verifications_expires ON public.email_verifications USING
 CREATE INDEX idx_login_requests_expires ON public.login_requests USING btree (expires_at);
 
 
+--
+-- Name: idx_login_requests_token; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX idx_login_requests_token ON public.login_requests USING btree (token);
+
+
 --
 -- Name: idx_login_requests_user; Type: INDEX; Schema: public; Owner: -
 --
@@ -1069,7 +1084,7 @@ ALTER TABLE ONLY public.user_devices
 -- PostgreSQL database dump complete
 --
 
-\unrestrict Trg340CgUaHnQsqUDFepZ6WnV8O2lwkEMfhS9CGxBAJbWOA8qTnig08shTgrMcE
+\unrestrict NwR9NcSOK9D25dGgvUNdLvsNphDACAXsvkQ5NSmhpf6sLcFR570yQ96lhgCbCXf
 
 
 --
@@ -1077,4 +1092,5 @@ ALTER TABLE ONLY public.user_devices
 --
 
 INSERT INTO public.schema_migrations (version) VALUES
-    ('001');
+    ('001'),
+    ('002');