* Polish transcript rendering
Tighten transcript spacing, collapse noisy permission/tool rows, and render tool activity with cleaner action-oriented labels.
Improve code and diff rendering with markdown highlighting, cleaner command output blocks, and grouped exploration summaries.
Tested: env GOCACHE=/tmp/zero-go-cache go test ./internal/tui
Tested: git diff --check
* Fix grep exploration rendering on Windows
Keep search query text out of path normalization so regex escapes render consistently across platforms.
Tested: env GOCACHE=/tmp/zero-go-cache go test ./internal/tui
Tested: git diff --check
* Address transcript rendering review
Cache highlighted streaming markdown so closed code blocks are not re-lexed on every live render.
Tighten bare-code detection to avoid highlighting ordinary prose, restore manual permission audit rows, and make exploration details expandable.
Also align diff content/header predicates and use display-width truncation for compact tool output.
Tested: env GOCACHE=/tmp/zero-go-cache go test ./internal/tui
Tested: env GOCACHE=/tmp/zero-go-cache go test -race ./internal/tui
Tested: env GOCACHE=/tmp/zero-go-cache go vet ./...
Tested: git diff --check
* tui: live code-streaming preview, theme system, plan/Task dedup
- Live "writing <file>" preview: a long write_file/edit_file/apply_patch
now streams the code as the model generates it (path + line count + a
color-coded tail) instead of a frozen spinner. Tool-call argument deltas
are forwarded zeroruntime -> agent -> TUI (OnToolCallStart/Delta).
- Theme system: auto dark/light detection via a terminal-background probe,
a /theme [auto|dark|light] command, a refreshed palette, and streaming
fade auto-disabled on low-color / SSH / tmux terminals.
- Plan/Task transcript dedup: update_plan collapses to a one-line summary
(the live plan panel owns the detail), and Task delegations render only
as the specialist card, not also as raw tool-call/result rows -- in both
the live and resume paths.
Robustness for the streaming preview: tolerate whitespace in tool-call
JSON, extract edit_file's new_string, clear the preview on tool finalize /
cancel / run-end (no stale or duplicate previews; a stale run can't wipe
the active one), color new content green (never red for a leading '-'),
and truncate by display width.
* address M10: keep failed Task delegations on resume
The unconditional Task tool-row skip on resume also hid a Task that failed
before a specialist started (there is no card to replace it). A pre-pass now
collects the tool-call ids that actually started a specialist; the Task
tool-call/result rows are skipped only for those, so a failed delegation and
its error stay visible on resume.
* streaming preview: decode tool-call args incrementally (O(n) not O(n^2))
The live "writing" preview re-scanned the whole accumulated args buffer on
every delta and grew it via string concat, so a large write_file/edit was
quadratic and janked exactly during the long write it targets (M14/L6/L7).
Replace the per-render decode with a streamingDecoder that consumes each
fragment once: it buffers the head until the content value begins (extracting
the path), then decodes the content's JSON-string escapes as they arrive,
keeping only a bounded tail of lines plus a running line count. The view now
reads that pre-computed state in O(tail) per render. Handles whitespace,
escapes split across fragments, \uXXXX, and the closing quote; unit-tested
including byte-by-byte vs whole-buffer equivalence.
Anandan