M0: compilable skeleton — Kigi 0.1.0 fork surgery

Hard fork of xai-org/grok-build (Apache-2.0) re-targeted as Kigi, an
unofficial Kimi Code CLI community build.

Rename & identity
- 72 xai-*/xai-grok-* crates -> kigi-* (explicit: xai-grok-pager-bin ->
  kigi-bin [binary `kigi`], xai-grok-pager -> kigi-tui; rest mechanical);
  ptyctl, ptyctl-cli, third_party/ unchanged; proto package
  xai.grok.tools.v1 -> kigi.tools.v1
- Config home ~/.kigi (KIGI_SHARE_DIR override), env prefix GROK_* ->
  KIGI_*, `kigi --version` carries the unofficial-community-build notice
- clap identity, help text, startup banner, prompt templates rebranded
  (templates re-encrypted)

Deletions (PRD removal list #5/#6/#7/#9/#10)
- voice input (xai-grok-voice) and all TUI wiring
- telemetry: Mixpanel client, external OTel stream, Sentry, OTLP layers,
  trace/GCS/S3 upload queues (kigi-file-utils halved), workspace upload
  module & dc_log, heap-profile uploader, auth-diagnostics uploader,
  session-analytics halves of feedback; local zero-egress observability
  preserved in new kigi-log crate (unified log, --debug firehose,
  subsystem file logs, opt-in instrumentation)
- announcements (crate, remote-settings fields, TUI surfaces)
- plugin marketplace (crate, sources/browse/CTA/extensions-modal tab);
  direct plugin install/uninstall/update via kigi-agent git_install kept
- relay/gateway/assets endpoints and features (agent relay, headless
  relay transport, gateway bridge, LeaderEnvUrls); leader IPC socket now
  ~/.kigi/leader.sock + KIGI_LEADER_SOCKET, no ws-url derivation
- functional types rehomed instead of deleted: PermissionMode ->
  kigi-config-types, McpInitStrategy -> kigi-mcp, PrCreationSource ->
  session signals, TerminalDiagnostics -> kigi-pager-render, agent_id ->
  shell util

Endpoints
- kigi-env rewritten: single production KigiEndpoints {coding_api_base_url
  https://api.kimi.com/coding/v1 (KIGI_CODE_BASE_URL), oauth_host
  https://auth.kimi.com (KIGI_OAUTH_HOST), update_base_url (GitHub
  Releases API), upgrade_page_url}; GrokBuildEnvironment enum deleted

Toolchain & workspace hygiene
- Rust 1.97.0 pinned; edition 2024; full cargo update; git2 hoisted to
  workspace at 0.21 (Option->Result API migration), quick-xml 0.41
- Root Cargo.toml hand-maintained (PRD §8.1): version 0.1.0 inherited by
  all members, members sorted, unused deps pruned
- cargo-deny advisories gate (deny.toml with documented transitive
  exceptions); CI workflow (check/clippy/fmt/deny/test, macOS+Linux)
- cross-crate test seams re-gated behind `test-support` cargo feature;
  insta snapshot baselines renamed to the kigi_tui prefix
- clippy --workspace --all-targets: zero warnings; fmt clean

Fixes surfaced by the port
- updater probe/installer divergence (bin/kigi vs bin/grok symlink set)
- idle model-metadata refresh dead under KIGI_CODE_BASE_URL override
  (new is_effective_coding_endpoint_url, loopback+override aware)
- macOS symlinked-TMPDIR fixture canonicalization (foreign_sessions,
  fast-worktree); RSS measurement tests serialized via serial_test

Docs & legal (Apache §4)
- NOTICE added (upstream attribution + change statement); THIRD-PARTY
  notices sustained; kigi-tools ported-code notices extended; README,
  CONTRIBUTING, SECURITY, AGENTS.md rewritten

Out of scope for M0 (tracked): Kimi auth/inference (M1), search/fetch,
command parity, config import (M2), Computer Hub excision & final
brand-token sweep (M2), distribution & self-update rewrite (M3).

crates/codegen/kigi-tui/src/scrollback/wrappers/accented.rs

@@ -0,0 +1,142 @@
+//! Accented wrapper - adds an accent line on the left.
+
+use ratatui::buffer::Buffer;
+use ratatui::layout::{Constraint, Layout, Rect};
+use ratatui::style::Style;
+
+use crate::render::Renderable;
+
+/// Wraps content with an accent line on the left.
+///
+/// The accent line takes 1 column. Content renders in the remaining space.
+///
+/// ```text
+/// │A│  Content here...  │
+/// │A│  More content...  │
+///  ↑
+///  Accent column (1 char)
+/// ```
+pub struct Accented<'a, T> {
+    inner: &'a T,
+    style: Style,
+}
+
+impl<'a, T> Accented<'a, T> {
+    /// Create a new accented wrapper.
+    pub fn new(inner: &'a T, style: Style) -> Self {
+        Self { inner, style }
+    }
+
+    /// Create with just a foreground color.
+    pub fn with_fg(inner: &'a T, color: ratatui::style::Color) -> Self {
+        Self {
+            inner,
+            style: Style::default().fg(color),
+        }
+    }
+}
+
+impl<T: Renderable> Renderable for Accented<'_, T> {
+    fn desired_height(&self, width: u16) -> u16 {
+        // Accent takes 1 column, so content gets width - 1
+        let content_width = width.saturating_sub(1);
+        self.inner.desired_height(content_width)
+    }
+
+    fn render(&self, area: Rect, buf: &mut Buffer) {
+        if area.width == 0 || area.height == 0 {
+            return;
+        }
+
+        // Split horizontally: [accent (1)] [content (rest)]
+        let [accent_area, content_area] =
+            Layout::horizontal([Constraint::Length(1), Constraint::Min(0)]).areas(area);
+
+        // Draw accent line for all rows
+        for y in accent_area.y..accent_area.y + accent_area.height {
+            buf.set_string(accent_area.x, y, crate::glyphs::accent_bar(), self.style);
+        }
+
+        // Render inner content
+        if content_area.width > 0 {
+            self.inner.render(content_area, buf);
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use pretty_assertions::assert_eq;
+    use ratatui::style::Color;
+
+    /// Simple test content that renders as fixed height.
+    struct TestContent {
+        height: u16,
+        text: &'static str,
+    }
+
+    impl Renderable for TestContent {
+        fn desired_height(&self, _width: u16) -> u16 {
+            self.height
+        }
+
+        fn render(&self, area: Rect, buf: &mut Buffer) {
+            for y in area.y..area.y + area.height.min(self.height) {
+                buf.set_string(area.x, y, self.text, Style::default());
+            }
+        }
+    }
+
+    #[test]
+    fn test_desired_height_accounts_for_accent() {
+        let content = TestContent {
+            height: 3,
+            text: "test",
+        };
+        let accented = Accented::with_fg(&content, Color::Blue);
+
+        // Width 80 -> content gets 79
+        assert_eq!(accented.desired_height(80), 3);
+    }
+
+    #[test]
+    fn test_render_places_accent() {
+        let content = TestContent {
+            height: 2,
+            text: "Hi",
+        };
+        let accented = Accented::with_fg(&content, Color::Blue);
+
+        let area = Rect::new(0, 0, 10, 2);
+        let mut buf = Buffer::empty(area);
+        accented.render(area, &mut buf);
+
+        // Check accent line is in column 0
+        assert_eq!(
+            buf.cell((0, 0)).unwrap().symbol(),
+            crate::glyphs::accent_bar()
+        );
+        assert_eq!(
+            buf.cell((0, 1)).unwrap().symbol(),
+            crate::glyphs::accent_bar()
+        );
+
+        // Check content starts at column 1
+        assert_eq!(buf.cell((1, 0)).unwrap().symbol(), "H");
+        assert_eq!(buf.cell((2, 0)).unwrap().symbol(), "i");
+    }
+
+    #[test]
+    fn test_render_empty_area() {
+        let content = TestContent {
+            height: 1,
+            text: "x",
+        };
+        let accented = Accented::with_fg(&content, Color::Blue);
+
+        let area = Rect::new(0, 0, 0, 0);
+        let mut buf = Buffer::empty(Rect::new(0, 0, 10, 10));
+        accented.render(area, &mut buf); // Should not panic
+    }
+}

crates/codegen/kigi-tui/src/scrollback/wrappers/block_renderer.rs

@@ -0,0 +1,233 @@
+//! BlockRenderer - bridges BlockContent to Renderable.
+//!
+//! This wrapper takes a block that implements `BlockContent` and renders
+//! its output into a given area, implementing the `Renderable` trait.
+
+use ratatui::buffer::Buffer;
+use ratatui::layout::Rect;
+use ratatui::style::Style;
+
+use crate::appearance::AppearanceConfig;
+use crate::render::{Renderable, SafeBuf};
+use crate::scrollback::block::BlockContent;
+use crate::scrollback::types::{BlockBackground, BlockContext, DisplayMode};
+use crate::theme::Theme;
+
+/// Renders a `BlockContent` implementation as a `Renderable`.
+pub struct BlockRenderer<'a, B> {
+    block: &'a B,
+    mode: DisplayMode,
+    is_running: bool,
+    raw: bool,
+    background: Option<ratatui::style::Color>,
+    max_lines: Option<u16>,
+    appearance: AppearanceConfig,
+}
+
+impl<'a, B> BlockRenderer<'a, B> {
+    pub fn new(block: &'a B) -> Self {
+        Self {
+            block,
+            mode: DisplayMode::Expanded,
+            is_running: false,
+            raw: false,
+            background: None,
+            max_lines: None,
+            appearance: AppearanceConfig::default(),
+        }
+    }
+
+    pub fn mode(mut self, mode: DisplayMode) -> Self {
+        self.mode = mode;
+        self
+    }
+
+    pub fn running(mut self, is_running: bool) -> Self {
+        self.is_running = is_running;
+        self
+    }
+
+    pub fn raw(mut self, raw: bool) -> Self {
+        self.raw = raw;
+        self
+    }
+
+    pub fn background(mut self, bg: ratatui::style::Color) -> Self {
+        self.background = Some(bg);
+        self
+    }
+
+    pub fn max_lines(mut self, max: u16) -> Self {
+        self.max_lines = Some(max);
+        self
+    }
+
+    pub fn appearance(mut self, appearance: AppearanceConfig) -> Self {
+        self.appearance = appearance;
+        self
+    }
+}
+
+impl<B: BlockContent> BlockRenderer<'_, B> {
+    fn make_context(&self, width: u16) -> BlockContext {
+        BlockContext {
+            mode: self.mode,
+            is_running: self.is_running,
+            width,
+            raw: self.raw,
+            max_lines: self.max_lines,
+            appearance: self.appearance.clone(),
+            is_selected: false,
+            cwd: None,
+        }
+    }
+
+    fn resolve_background(&self, block_bg: BlockBackground) -> Option<ratatui::style::Color> {
+        // Explicit override takes precedence
+        if let Some(bg) = self.background {
+            return Some(bg);
+        }
+
+        // Otherwise use block's declared background
+        let theme = Theme::current();
+        match block_bg {
+            BlockBackground::None => None,
+            BlockBackground::Light => Some(theme.bg_light),
+            BlockBackground::Dark => Some(theme.bg_dark),
+        }
+    }
+}
+
+impl<B: BlockContent> Renderable for BlockRenderer<'_, B> {
+    fn desired_height(&self, width: u16) -> u16 {
+        let ctx = self.make_context(width);
+        let output = self.block.output(&ctx);
+        let has_vpad = self.block.has_vpad(&ctx);
+
+        let content_height = output.len() as u16;
+        let vpad = if has_vpad { 2 } else { 0 }; // top + bottom
+
+        content_height + vpad
+    }
+
+    fn render(&self, area: Rect, buf: &mut Buffer) {
+        if area.width == 0 || area.height == 0 {
+            return;
+        }
+
+        let ctx = self.make_context(area.width);
+        let output = self.block.output(&ctx);
+        let has_vpad = self.block.has_vpad(&ctx);
+        let block_bg = self.block.background(&ctx);
+
+        // Resolve background color
+        let bg_color = self.resolve_background(block_bg);
+
+        // Fill background if specified
+        if let Some(bg) = bg_color {
+            let bg_style = Style::default().bg(bg);
+            for y in area.y..area.y + area.height {
+                for x in area.x..area.x + area.width {
+                    if let Some(cell) = buf.cell_mut((x, y)) {
+                        cell.set_style(bg_style);
+                    }
+                }
+            }
+        }
+
+        let mut row = area.y;
+        let max_row = area.y + area.height;
+
+        // Top vpad (empty row)
+        if has_vpad && row < max_row {
+            row += 1;
+        }
+
+        // Content lines
+        for line in &output.lines {
+            if row >= max_row {
+                break;
+            }
+
+            // Apply line-specific background if set
+            // Respects bg_start_col for partial background
+            if let Some(line_bg) = line.background {
+                let bg_x = area.x + line.bg_start_col;
+                let bg_width = area.width.saturating_sub(line.bg_start_col);
+                if bg_width > 0 {
+                    let line_rect = Rect::new(bg_x, row, bg_width, 1);
+                    buf.set_style(line_rect, Style::default().bg(line_bg));
+                }
+            }
+
+            // Render the line content
+            buf.set_line_safe(area.x, row, &line.content, area.width);
+            row += 1;
+        }
+
+        // Bottom vpad (empty row) - just skip, background already applied
+        // (no explicit rendering needed)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::scrollback::block::StubBlock;
+    use pretty_assertions::assert_eq;
+    use ratatui::style::Color;
+
+    #[test]
+    fn test_desired_height_with_vpad() {
+        let block = StubBlock::new("Hello", Color::Blue);
+        let renderer = BlockRenderer::new(&block);
+
+        // StubBlock has 1 line + vpad (top + bottom) = 3
+        assert_eq!(renderer.desired_height(80), 3);
+    }
+
+    #[test]
+    fn test_render_fills_area() {
+        let block = StubBlock::new("Test content", Color::Blue);
+        let renderer = BlockRenderer::new(&block);
+
+        let area = Rect::new(0, 0, 20, 5);
+        let mut buf = Buffer::empty(area);
+        renderer.render(area, &mut buf);
+
+        // Row 0 = top vpad (empty)
+        // Row 1 = content "Test content"
+        // Row 2 = bottom vpad (empty)
+        // Content should be at row 1
+        let content_cell = buf.cell((0, 1)).unwrap();
+        assert_eq!(content_cell.symbol(), "T");
+    }
+
+    #[test]
+    fn test_render_with_explicit_background() {
+        let block = StubBlock::new("BG test", Color::Blue);
+        let renderer = BlockRenderer::new(&block).background(Color::Red);
+
+        let area = Rect::new(0, 0, 10, 3);
+        let mut buf = Buffer::empty(area);
+        renderer.render(area, &mut buf);
+
+        // All cells should have red background
+        for y in 0..3 {
+            for x in 0..10 {
+                assert_eq!(buf.cell((x, y)).unwrap().bg, Color::Red);
+            }
+        }
+    }
+
+    #[test]
+    fn test_different_display_modes() {
+        let block = StubBlock::new("Mode test", Color::Blue);
+
+        let expanded = BlockRenderer::new(&block).mode(DisplayMode::Expanded);
+        let collapsed = BlockRenderer::new(&block).mode(DisplayMode::Collapsed);
+
+        // Both should have same height for StubBlock (it doesn't vary by mode)
+        assert_eq!(expanded.desired_height(80), collapsed.desired_height(80));
+    }
+}

crates/codegen/kigi-tui/src/scrollback/wrappers/mod.rs

@@ -0,0 +1,80 @@
+//! Wrapper types for composable rendering.
+//!
+//! These wrappers implement the `Renderable` trait and add decorations
+//! (accent lines, padding, etc.) around inner content.
+//!
+//! ## Composition Example
+//!
+//! ```text
+//! Padded::standard(                    // Adds left=2, right=1 padding
+//!     &Accented::with_fg(              // Adds accent line on left
+//!         &BlockRenderer::new(&block), // Renders block content
+//!         Color::Blue,
+//!     )
+//! )
+//! ```
+//!
+//! This produces:
+//! ```text
+//! │PP│A│ Content here... │P│
+//!  ↑↑  ↑                   ↑
+//!  │   └─ Accent           └─ Right padding
+//!  └───── Left padding
+//! ```
+
+mod accented;
+mod block_renderer;
+mod entry_renderer;
+mod padded;
+
+pub use accented::Accented;
+pub use block_renderer::BlockRenderer;
+pub use entry_renderer::EntryRenderer;
+pub(crate) use entry_renderer::group_header_chrome_prefix_width;
+pub use padded::Padded;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::render::Renderable;
+    use crate::scrollback::block::StubBlock;
+    use pretty_assertions::assert_eq;
+    use ratatui::buffer::Buffer;
+    use ratatui::layout::Rect;
+    use ratatui::style::Color;
+
+    /// Test that wrappers can be composed together.
+    #[test]
+    fn test_wrapper_composition() {
+        let block = StubBlock::new("Hello", Color::Blue);
+        let renderer = BlockRenderer::new(&block);
+        let accented = Accented::with_fg(&renderer, Color::Blue);
+        let padded = Padded::standard(&accented);
+
+        // Check height calculation chains correctly
+        // BlockRenderer: 3 (1 content + 2 vpad)
+        // Accented: takes 1 column, height unchanged
+        // Padded: takes 3 columns (2+1), height unchanged
+        assert_eq!(padded.desired_height(80), 3);
+
+        // Render and verify structure
+        let area = Rect::new(0, 0, 20, 3);
+        let mut buf = Buffer::empty(area);
+        padded.render(area, &mut buf);
+
+        // Layout should be:
+        // Cols 0-1: padding (empty)
+        // Col 2: accent line
+        // Cols 3+: content
+        // Last col: right padding
+
+        // Check accent is at column 2
+        assert_eq!(buf.cell((2, 0)).unwrap().symbol(), "┃");
+        assert_eq!(buf.cell((2, 1)).unwrap().symbol(), "┃");
+        assert_eq!(buf.cell((2, 2)).unwrap().symbol(), "┃");
+
+        // Check content starts at column 3 (after accent)
+        // Row 0 is vpad (empty), row 1 is content
+        assert_eq!(buf.cell((3, 1)).unwrap().symbol(), "H");
+    }
+}

crates/codegen/kigi-tui/src/scrollback/wrappers/padded.rs

@@ -0,0 +1,172 @@
+//! Padded wrapper - adds horizontal padding around content.
+
+use ratatui::buffer::Buffer;
+use ratatui::layout::{Constraint, Layout, Rect};
+use ratatui::style::Style;
+
+use crate::render::Renderable;
+
+/// Wraps content with horizontal padding.
+///
+/// Adds left and right padding columns. Optionally fills padding with a background.
+///
+/// ```text
+/// │PP│  Content here...  │P│
+/// │PP│  More content...  │P│
+///  ↑↑                     ↑
+///  Left padding (2)       Right padding (1)
+/// ```
+pub struct Padded<'a, T> {
+    inner: &'a T,
+    left: u16,
+    right: u16,
+    bg: Option<ratatui::style::Color>,
+}
+
+impl<'a, T> Padded<'a, T> {
+    /// Create a new padded wrapper.
+    pub fn new(inner: &'a T, left: u16, right: u16) -> Self {
+        Self {
+            inner,
+            left,
+            right,
+            bg: None,
+        }
+    }
+
+    /// Create with standard pager padding (2 left, 1 right).
+    pub fn standard(inner: &'a T) -> Self {
+        Self::new(inner, 2, 1)
+    }
+
+    /// Set background color for padding and content area.
+    pub fn with_bg(mut self, color: ratatui::style::Color) -> Self {
+        self.bg = Some(color);
+        self
+    }
+}
+
+impl<T: Renderable> Renderable for Padded<'_, T> {
+    fn desired_height(&self, width: u16) -> u16 {
+        // Padding takes left + right columns
+        let content_width = width.saturating_sub(self.left + self.right);
+        self.inner.desired_height(content_width)
+    }
+
+    fn render(&self, area: Rect, buf: &mut Buffer) {
+        if area.width == 0 || area.height == 0 {
+            return;
+        }
+
+        // Fill background if specified
+        if let Some(bg) = self.bg {
+            let bg_style = Style::default().bg(bg);
+            for y in area.y..area.y + area.height {
+                for x in area.x..area.x + area.width {
+                    if let Some(cell) = buf.cell_mut((x, y)) {
+                        cell.set_style(bg_style);
+                    }
+                }
+            }
+        }
+
+        // Split horizontally: [left pad] [content] [right pad]
+        let [_left_area, content_area, _right_area] = Layout::horizontal([
+            Constraint::Length(self.left),
+            Constraint::Min(0),
+            Constraint::Length(self.right),
+        ])
+        .areas(area);
+
+        // Render inner content
+        if content_area.width > 0 {
+            self.inner.render(content_area, buf);
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use pretty_assertions::assert_eq;
+    use ratatui::style::Color;
+
+    /// Simple test content that renders as fixed height.
+    struct TestContent {
+        height: u16,
+        text: &'static str,
+    }
+
+    impl Renderable for TestContent {
+        fn desired_height(&self, _width: u16) -> u16 {
+            self.height
+        }
+
+        fn render(&self, area: Rect, buf: &mut Buffer) {
+            for y in area.y..area.y + area.height.min(self.height) {
+                buf.set_string(area.x, y, self.text, Style::default());
+            }
+        }
+    }
+
+    #[test]
+    fn test_desired_height_accounts_for_padding() {
+        let content = TestContent {
+            height: 3,
+            text: "test",
+        };
+        let padded = Padded::new(&content, 2, 1);
+
+        // Width 80 -> content gets 77 (80 - 2 - 1)
+        assert_eq!(padded.desired_height(80), 3);
+    }
+
+    #[test]
+    fn test_standard_padding() {
+        let content = TestContent {
+            height: 1,
+            text: "x",
+        };
+        let padded = Padded::standard(&content);
+
+        // Standard is 2 left, 1 right
+        // Width 10 -> content gets 7
+        assert_eq!(padded.desired_height(10), 1);
+    }
+
+    #[test]
+    fn test_render_places_content_with_offset() {
+        let content = TestContent {
+            height: 1,
+            text: "Hi",
+        };
+        let padded = Padded::new(&content, 2, 1);
+
+        let area = Rect::new(0, 0, 10, 1);
+        let mut buf = Buffer::empty(area);
+        padded.render(area, &mut buf);
+
+        // Content starts at column 2 (after 2-char left padding)
+        assert_eq!(buf.cell((2, 0)).unwrap().symbol(), "H");
+        assert_eq!(buf.cell((3, 0)).unwrap().symbol(), "i");
+    }
+
+    #[test]
+    fn test_render_with_background() {
+        let content = TestContent {
+            height: 1,
+            text: "X",
+        };
+        let padded = Padded::new(&content, 1, 1).with_bg(Color::Blue);
+
+        let area = Rect::new(0, 0, 5, 1);
+        let mut buf = Buffer::empty(area);
+        padded.render(area, &mut buf);
+
+        // All cells should have blue background
+        for x in 0..5 {
+            let cell = buf.cell((x, 0)).unwrap();
+            assert_eq!(cell.bg, Color::Blue);
+        }
+    }
+}