The fourth area of the interface translation. Everything a conversation is made
of now builds its text through t(): the thinking card and the status line it
replaces while the model reasons, the plan card, the tool cards (both the plain
one and its sub-agent steps), the published-content card, the UI-component card
and the compression notice, plus the two new chat bubbles' copy button and the
"Scheduled recall" mark on an injected user message.

25 new slugs in all three dictionaries:

- 23 in messages.* — the cards' own headers and labels (Thinking, Plan,
  Arguments, Show all / Hide older tools, Useful / Not useful, Open file,
  Content, Unknown UI component: {name}, Context summary, Compressing context…,
  Context compressed), the running and elapsed labels (Running {tool}…,
  Preparing next action…, running, starting) and the two counted ones that a
  compact JSON preview renders, "{n} items" and "{n} keys";
- 2 in common.* — Copy and Copied!, which the assistant and the user message
  both need.

Three details worth knowing:

- The English values are verbatim the literals the code hard-coded, with one
  exception: "{n} tools" and "({before} → {after} messages)" are now dictionary
  plurals, so English says "1 tool" and "1 message" where it used to say
  "1 tools" and "1 messages". No test asserted either string.
- The braces around the two compact-JSON counts stay in the template
  (`[${t('messages.jsonItems', { n })}]`), so a translator never has to keep a
  bracket it cannot see the other half of.
- The message list's ContentCard shows the same published-file widget as the
  artifacts drawer, so it reads the six artifacts.* slugs of that widget rather
  than carrying six duplicates under messages.*; and its two tool-output labels
  — Result and Live output — are the words the tool card already uses, so they
  sit in common.* and the drawer's copies moved there too. docs/i18n.md records
  both.

Checked live in Chromium against the built bundle on the dev backend: five
saved sessions chosen so that between them they render every component of the
area (thinking cards, plan cards, 55 tool cards, published-content cards,
UI-component cards and a compression notice), six loads per language, with
every collapsed block expanded first and a scan for a slug leaking into the
rendered text as the pass condition. The sub-agent step cannot be reached from
a saved session — the runtime does not persist tool steps — so SubagentStep was
rendered on its own in a throwaway mount instead: "выполняется", "Аргументы",
"Результат", "[3 элемента]".

Open/close of the tool cards jumped in Firefox and Safari: the previous
attempt leaned on interpolate-size/::details-content, and interpolate-size
shipped in Chromium alone, so the @supports block degraded to a hard
attribute flip everywhere else.

Drive the element's own height from JS instead. Nothing there is
engine-specific: open animates to scrollHeight, close to the summary
height, overflow is clipped for the duration and the inline styles come
off on transitionend with a timer as a backstop. The element keeps its
native semantics — keyboard, screen readers, find-in-page — because the
open attribute is still what changes; the toggle event still fires, so
ContentCard's :open/@toggle pairing is untouched. prefers-reduced-motion
settles in a single frame.

A newly inserted card grows its grid row from 0fr to 1fr, which
interpolates everywhere and resolves to whatever the card measures, so
the card below slides instead of being displaced.

Measured in Chromium 153 and Firefox 155 against the real component
markup and the built bundle: 33 -> 586px over 18 distinct heights in
both, and the same for insertion, the nested Arguments block and the
plan card. The scroll behaviour of MessageList was left alone.

All ~165 legacy var() usages (--color-*, --surface*, --accent*, --border,
--text*) with hex fallbacks and ~150 raw hex literals across app.scss and
24 scoped style blocks are swapped to the kit's --gn-* tokens per the
intent of the old fallback values:

- accent/primary/teal (#7aa2f7/#4ec9b0) -> --gn-color-secondary
- amber/orange highlights -> --gn-color-accent
- text greys -> --gn-color-text-{light,medium,dark}
- panels -> --gn-surface-panel; elevated tints -> color-mix over panel
- translucent overlays -> color-mix(in srgb, ..., transparent)

Deliberately literal: terminal deep bg #0f0f14 (darker than any token)
and the content-card image badge teal #89dceb (kit has no teal). File
type badges keep a categorical palette via nearest kit tokens.

Dead "UI kit overrides" block halved: kit 1.0 dropped hover icon
rotation, so only the app-owned chevron open-state flip remains.

Verified: vitest 111 passed, build OK, dev render matches W1 baseline

- Extract ContextCompressor from agent.py (Step 1 of god-object refactor)
- Add retry + hard-truncate fallback logic to ContextCompressor
- Add unit tests: agent loop (14), compressor (18), KV store (8),
  auth encrypt (3), auth deps (13), todo/scratchpad/image_view/memory
- Fix WebGL STL viewer: allow-same-origin sandbox + graceful fallback
- Add CompressionStarted event and client-side compression notice
- Add docs/architecture_weak_spots.md and plan_01_god_object_agent.md
- Update test_events.py and test_agent_context_size.py for new logic

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

- AgentProfile: per-profile thinking mechanics flags (think_enabled,
  iteration_budget_enabled, goal_anchoring, anti_stall, step_validation,
  planning_reflect, adaptive_replan) — all profiles updated in config.json
- Iteration budget: inject remaining iterations into context so model knows
  when to wrap up; urgency levels at ≤7 and ≤3 remaining
- Goal anchoring: inject original goal + todo state every N iterations to
  prevent drift on long tasks
- Anti-stall: two signals — no todo progress for N iterations, or identical
  tool calls repeated N times; warning injected into context
- Todo step validation: marking done requires a validation field describing
  how result was verified; failed gets a soft nudge with tip for re-planning
- stream_complete: add think param to base class, ollama and openai backends
- Summarizer: raise max_tokens 1024→3000, expand system prompt with
  user-preferences section and verbatim-value instructions
- Compression card: persist to session.messages (is_compression flag on
  Message), show expandable summary in webclient with markdown body
- ToolResult.to_message_content: always include output on failure so
  tracebacks and error details reach the model (fixes silent Error: None)
- Developer profile: fix subagent profile secretary→developer, add write_tool
  to subagent_tools, clarify write_tool vs filesystem in system prompt

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

- client/ → old_webclient/ (vanilla JS client preserved as reference)
- webclient/ — new Vue 3 + Pinia webclient (source + dist build)
- vite.config.js: outDir changed to webclient/dist/
- main.py: serve /assets and /images from webclient/dist/,
  index.html from webclient/dist/index.html
- .gitignore: exclude webclient/node_modules/, include webclient/dist/

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>