Files
Charles KWON OhJun 3bbfbb7010 feat(labdb): wire bridge_server to live PostgreSQL via pgrtl
End-to-end PRG → Go RTL → pgxpool → labdb queries → JSON response,
from a single 24 MB binary with no Node.js, FFI, or Apache anywhere
in the request path.

  app/bridge_server.prg:
    Main now opens a pgxpool handle from LABDB_DSN (or the local
    Homebrew default) before HTTP_SERVER_START, then publishes it
    via LABDB_SET_PG so request goroutines can pick it up.

    BridgeDispatch calls FetchRouteData before the per-path PRG
    handler runs. FetchRouteData maps a few /api/* routes to the
    same SQL the upstream server.js endpoint runs, encodes results
    via hb_jsonEncode, and stuffs them into ctx fields under the
    same keys the existing labdb api/*.prg handlers already read
    (rows, total, devices, etc.). PRG handlers stay unmodified.

  hbrtl_ext/labdb_state/:
    Tiny Go RTL that holds the PG handle in a sync/atomic.Int64.
    Picked this over a PRG STATIC/PUBLIC variable to sidestep
    Five's stricter parser (now that parser.go errors on missing
    terminators, anything more elaborate in the entry .prg adds
    friction without buying anything).

Verified against a Homebrew postgres@16 cluster seeded with 2 devices
+ 2 sessions:

  /api/admin-stats.prg
    → {"devices":2,"sessions":2,"records":0,"active_sessions":1}
  /api/sessions-list.prg
    → {"sessions":[...two rows with full fields...],"total":2}
  /api/admin-devices.prg
    → {"devices":[...two rows with api_key/created_at...]}
  /api/hello.prg (no DB)
    → unchanged from 1a.4-3

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-27 16:46:03 +09:00
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