feat: scaffold newsfeed — user-controlled news feed

A self-hosted feed where the user owns the ranking: per-source and signed
per-interest weights, decayed by recency, via a transparent deterministic
scorer. Content is sourced algorithmically (worker RSS/Atom polling) and
agentically (per-user API tokens POSTing candidates to the ingest endpoint).
Single-user today, multi-user by construction (every row keyed on user_id).

Rust cargo workspace + Vite/React/SWC/TS SPA:
- newsfeed-entities: DTOs (ts-rs bindings -> web/src/api/bindings)
- newsfeed-core: ranking, auth primitives, ingest, data-access ports
- newsfeed-data: SQLite adapters (sqlx, runtime queries)
- newsfeed-api: axum REST/JSON daemon
- newsfeed-worker: RSS polling + rescoring loop
- web: responsive, mobile-first SPA (React Query, generated types)

Deploy (Gitea Actions, build static musl + SPA, rsync as gitea_ci):
api+worker -> slartibartfast, SPA -> oolon (nginx serves + proxies /v1).

Deliberate deviations from house conventions (documented in CLAUDE.md/readme):
- SQLite instead of Postgres; api+worker co-locate sharing one DB file.
- Runtime sqlx queries instead of query! macros (SQLite dynamic typing;
  keeps CI database-free).

Verified end-to-end: auth, token ingest, interest-weighted ranking, signals,
pagination (curl + browser); cargo fmt/clippy -D/test and pnpm build/lint pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016fKZzDpvjiJ9eYbPGgJvUP

asset/config/config.toml.tmpl

@@ -0,0 +1,20 @@
+# newsfeed-api configuration (production). Rendered to /etc/newsfeed/config.toml.
+#
+# This file contains no secrets — newsfeed uses SQLite (no DB password), and session
+# cookies / API tokens are random values hashed at rest (no signing key). It is therefore
+# committed as concrete values, not {{PLACEHOLDER}} templates. Env (NEWSFEED_*) still
+# overrides any value at runtime.
+
+# Bind the mesh-routable address so the oolon proxy can reach it. firewalld
+# (newsfeed-api service) bounds who may connect; TLS terminates at oolon.
+bind = "0.0.0.0:8081"
+
+database_path = "/var/lib/newsfeed/newsfeed.db"
+session_ttl_days = 30
+max_db_connections = 5
+
+# Same-origin in production (oolon serves the SPA and proxies the API), so no CORS.
+cors_origins = []
+
+# Cookies are only sent over HTTPS (the browser talks to oolon over TLS).
+cookie_secure = true

asset/config/worker.toml.tmpl

@@ -0,0 +1,16 @@
+# newsfeed-worker configuration (production). Rendered to /etc/newsfeed/worker.toml.
+# No secrets (see config.toml.tmpl).
+
+database_path = "/var/lib/newsfeed/newsfeed.db"
+max_db_connections = 2
+
+# Poll cadence.
+tick_secs = 60
+# Don't re-poll the same RSS source more often than this.
+source_min_interval_secs = 900
+# Sources polled per cycle, and items rescored per user per cycle.
+batch = 20
+rescore_limit = 500
+
+http_timeout_secs = 20
+user_agent = "newsfeed-worker (+https://git.lair.cafe/grenade/newsfeed)"