v0.8.2: fix grey background/text cosmetic issues

- view-chat draw-text calls: change nil bg to (theme-color :bg)
  so text characters sit on explicit near-black instead of terminal
  default background (which appears as grey highlight)
- cl-tty bump (v1.2.0: remove \n from draw-rect that caused scroll
  leaving the last row blank)

docs/ROADMAP.org

@@ -143,6 +143,52 @@ stabilization of the cl-tty TUI runtime.
 | Ctrl+Q | Quit |
 | ? | Help panel |
 
+** v0.8.1: Hardening — Runtime Safety Fixes
+
+:PROPERTIES:
+:ID:       id-v081-hardening
+:CREATED:  [2026-05-20 Wed]
+:END:
+
+Three small fixes that protect the runtime while the TUI stabilizes. Each is a single-session change (minutes, not days).
+
+*** Heartbeat error handling
+:PROPERTIES:
+:ID:       id-v081-heartbeat
+:CREATED:  [2026-05-20 Wed]
+:END:
+
+The heartbeat loop in ~core-pipeline.org~ has no error handler. An unhandled condition in any tick kills the thread — auto-save, cron, and background maintenance die silently. The daemon keeps running but the user sees no evidence.
+
+Wrap the loop body in ~handler-case~, log the error, continue. ~5 lines.
+
+*** Atomic memory save
+:PROPERTIES:
+:ID:       id-v081-atomic-save
+:CREATED:  [2026-05-20 Wed]
+:END:
+
+~save-memory-to-disk~ writes directly to the snapshot path. A crash or SIGINT mid-write truncates the file. Next boot reads garbage and starts with empty memory.
+
+Write to ~path.tmp~, then ~rename-file~. ~3 lines.
+
+*** Version string consistency
+:PROPERTIES:
+:ID:       id-v081-versions
+:CREATED:  [2026-05-20 Wed]
+:END:
+
+~passepartout.asd~ says ~0.4.3~, ~core-transport.org~ handshake says ~0.7.2~, ~core-reason.org~ config prompt says ~v0.7.2~, README and CHANGELOG and tags all diverge. Bring all four to ~0.8.0~. Better yet, define ~*version*~ once and reference it.
+
+| File | Line | Change |
+|------|------|--------|
+| ~passepartout.asd~ | 4 | ~:version "0.4.3"~ → ~"0.8.0"~ |
+| ~org/core-manifest.org~ | 25 | same |
+| ~org/core-transport.org~ | 157 | ~(make-hello-message "0.7.2")~ → ~"0.8.0"~ |
+| ~org/core-reason.org~ | 260 | ~"v0.7.2"~ in prompt string → ~"v0.8.0"~ |
+
+~4 lines.
+
 ** v0.9.0: Eval Harness — Safety Net First
 
 Every subsequent release ships with automated regression protection. The eval harness is the gate that makes self-modification safe — before any neurosymbolic component modifies the system, the harness verifies nothing broke.