feat: changelog on update, full-width highlights, @ file picker docs

Changelog dialog now shows only the changelog section from release notes with headings in accent color. Works for local 0.0.0 builds (fetches latest release). Full-width highlight bars fixed everywhere via erase-to-EOL and trailing ANSI preservation in truncateToWidth. Session ops dialog fixed. README documents the @ file picker.

README.md

@@ -362,6 +362,20 @@ Slash commands also work while the agent is busy. Read-only ones (`/help`, `/jum
 | `ctrl+d` | Exit on empty input. |
 | `ctrl+l` | Redraw the screen. |
 | `ctrl+o` | Expand or collapse long tool results (read, write, edit, bash outputs over ~12 lines). |
+| `@` | Open the file picker. Browse files and directories in the working directory. |
+
+### File picker (`@`)
+
+| Key | Action |
+|---|---|
+| `@` | Open the file picker (type after a space or at the start of input). |
+| `up`, `down` | Navigate the file list. |
+| `right` | Open the selected directory. |
+| `left` | Go back to the parent directory. |
+| `enter` | Select the file or directory and insert it as a chip (`[file:name]` or `[dir:name/]`). |
+| `esc` | Close the file picker. |
+
+Type `@` followed by a filter string to narrow the list (e.g. `@read` shows only entries containing "read"). Selected files are inserted as compact chips that expand to the full path on submit. Dragged-and-dropped files and directories also collapse to chips automatically.
 
 ### Editor line navigation
 

internal/agent/changelog.go

@@ -27,14 +27,22 @@ type ChangelogInfo struct {
 // Honours $GITHUB_TOKEN for private-repo access. Times out at 4s so
 // startup never blocks on a flaky network.
 func FetchChangelog(ctx context.Context, version string) (ChangelogInfo, error) {
-	if version == "" || version == "dev" || version == "0.0.0" {
+	if version == "" || version == "dev" {
 		return ChangelogInfo{}, nil
 	}
-	tag := version
-	if !strings.HasPrefix(tag, "v") {
-		tag = "v" + tag
+
+	// For local dev builds (0.0.0), fetch the latest release instead
+	// of a tagged one so developers always see the newest changelog.
+	var url string
+	if version == "0.0.0" {
+		url = "https://api.github.com/repos/patriceckhart/zot/releases/latest"
+	} else {
+		tag := version
+		if !strings.HasPrefix(tag, "v") {
+			tag = "v" + tag
+		}
+		url = fmt.Sprintf("https://api.github.com/repos/patriceckhart/zot/releases/tags/%s", tag)
 	}
-	url := fmt.Sprintf("https://api.github.com/repos/patriceckhart/zot/releases/tags/%s", tag)
 	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
 	if err != nil {
 		return ChangelogInfo{}, err
@@ -67,6 +75,11 @@ func FetchChangelog(ctx context.Context, version string) (ChangelogInfo, error)
 	if body.Body == "" {
 		return ChangelogInfo{}, nil
 	}
+	// Extract only the changelog section and strip markdown headers.
+	body.Body = extractChangelog(body.Body)
+	if body.Body == "" {
+		return ChangelogInfo{}, nil
+	}
 	return ChangelogInfo{
 		Version: strings.TrimPrefix(body.TagName, "v"),
 		Body:    body.Body,
@@ -74,6 +87,52 @@ func FetchChangelog(ctx context.Context, version string) (ChangelogInfo, error)
 	}, nil
 }
 
+// extractChangelog pulls the content starting from "## Changelog"
+// (or the whole body if no such header exists) and strips markdown
+// heading markers (# ## ###) from every line so the TUI renders
+// clean text.
+func extractChangelog(body string) string {
+	lines := strings.Split(body, "\n")
+
+	// Find the "## Changelog" line.
+	start := -1
+	for i, l := range lines {
+		trimmed := strings.TrimSpace(l)
+		if strings.EqualFold(trimmed, "## changelog") ||
+			strings.EqualFold(trimmed, "## Changelog") {
+			start = i + 1
+			break
+		}
+	}
+	if start < 0 {
+		// No changelog header found; use the whole body.
+		start = 0
+	}
+
+	// Process remaining lines: strip # markers but mark headings
+	// so the renderer can color them.
+	var out []string
+	for _, l := range lines[start:] {
+		trimmed := strings.TrimSpace(l)
+		if trimmed == "" {
+			out = append(out, "")
+			continue
+		}
+		// Detect markdown headings and strip the # but keep text.
+		if strings.HasPrefix(trimmed, "#") {
+			heading := strings.TrimLeft(trimmed, "#")
+			heading = strings.TrimSpace(heading)
+			if heading != "" {
+				// Mark headings with a sentinel the dialog can detect.
+				out = append(out, "\x00H:"+heading)
+			}
+			continue
+		}
+		out = append(out, l)
+	}
+	return strings.TrimSpace(strings.Join(out, "\n"))
+}
+
 // FetchChangelogAsync runs FetchChangelog on a goroutine and delivers
 // the result on the returned channel. Channel always closes.
 func FetchChangelogAsync(version string) <-chan ChangelogInfo {
@@ -94,12 +153,18 @@ func FetchChangelogAsync(version string) <-chan ChangelogInfo {
 // the first-ever launch (no LastChangelogShown stored — we don't
 // dump release notes at someone who just installed).
 func ShouldShowChangelog(currentVersion string, cfg Config) bool {
-	if currentVersion == "" || currentVersion == "dev" || currentVersion == "0.0.0" {
+	if currentVersion == "" || currentVersion == "dev" {
 		return false
 	}
 	if cfg.LastChangelogShown == "" {
 		return false
 	}
+	// For local builds (0.0.0), always proceed to the fetch step.
+	// The caller compares the fetched release version against
+	// LastChangelogShown to decide whether to actually show.
+	if currentVersion == "0.0.0" {
+		return true
+	}
 	return cfg.LastChangelogShown != currentVersion
 }
 
@@ -120,7 +185,7 @@ func MarkChangelogShown(version string) error {
 // correctly trigger the dialog while THIS launch (which is also
 // "first-ever") doesn't.
 func SeedChangelogVersion(version string) {
-	if version == "" || version == "dev" || version == "0.0.0" {
+	if version == "" || version == "dev" {
 		return
 	}
 	cfg, err := LoadConfig()

internal/agent/cli.go

@@ -554,6 +554,11 @@ func runInteractive(ctx context.Context, args Args, version string) error {
 		if info.Body == "" {
 			return
 		}
+		// For dev builds (0.0.0), skip if the latest release was
+		// already shown (stored by the dismiss callback).
+		if version == "0.0.0" && info.Version == cfg.LastChangelogShown {
+			return
+		}
 		changelogCh <- modes.ChangelogPayload{
 			Version: info.Version,
 			Body:    info.Body,
@@ -610,7 +615,16 @@ func runInteractive(ctx context.Context, args Args, version string) error {
 		Extensions:    extMgr,
 		ChangelogChan: changelogCh,
 		OnChangelogDismiss: func() {
-			_ = MarkChangelogShown(version)
+			// For dev builds (0.0.0) store the actual release version
+			// so the same changelog doesn't show again next launch.
+			// For real builds, store the binary version.
+			v := version
+			if v == "0.0.0" {
+				if iv != nil && iv.ChangelogVersion() != "" {
+					v = iv.ChangelogVersion()
+				}
+			}
+			_ = MarkChangelogShown(v)
 		},
 		SkillSnapshot: func() []*skills.Skill {
 			if args.NoSkill {

internal/agent/modes/changelog_dialog.go

@@ -83,8 +83,20 @@ func (d *changelogDialog) Render(th tui.Theme, width int) []string {
 		out = append(out, "")
 	}
 
-	rendered := tui.RenderMarkdown(d.body, th, width-4)
-	bodyLines := strings.Split(rendered, "\n")
+	var bodyLines []string
+	for _, l := range strings.Split(d.body, "\n") {
+		if strings.HasPrefix(l, "\x00H:") {
+			// Heading: render in accent color, bold.
+			heading := strings.TrimPrefix(l, "\x00H:")
+			bodyLines = append(bodyLines, th.FG256(th.Accent, tui.Bold(heading)))
+		} else {
+			// Regular line: render through markdown for bullet points etc.
+			rendered := tui.RenderMarkdown(l, th, width-4)
+			for _, rl := range strings.Split(rendered, "\n") {
+				bodyLines = append(bodyLines, rl)
+			}
+		}
+	}
 
 	const maxRows = 18
 	if d.scroll > len(bodyLines)-1 {

internal/agent/modes/interactive.go

@@ -1655,6 +1655,16 @@ func (i *Interactive) SubmitOrQueue(text string, images []provider.ImageBlock) {
 
 // CancelTurn aborts the active turn if one is running. Used by the
 // telegram bridge when the paired user sends /stop.
+// ChangelogVersion returns the version string of the changelog
+// currently shown (or last shown). Used by the dismiss callback
+// to store the correct version for dev builds.
+func (i *Interactive) ChangelogVersion() string {
+	if i.changelogDialog != nil {
+		return i.changelogDialog.version
+	}
+	return ""
+}
+
 func (i *Interactive) CancelTurn() {
 	i.mu.Lock()
 	cancel := i.cancelTurn

internal/agent/modes/session_ops_dialog.go

@@ -86,14 +86,14 @@ func (d *sessionOpsDialog) Render(th tui.Theme, width int) []string {
 	lines = append(lines, frameHeader(th, "session", width))
 	lines = append(lines, th.FG256(th.Muted, "pick an action (\u2191/\u2193, enter, esc to cancel):"))
 	for i, it := range d.items {
-		plain := "  " + it.label
+		text := "  " + it.label
 		if it.hint != "" {
-			plain += "  " + th.FG256(th.Muted, "("+it.hint+")")
+			text += "  (" + it.hint + ")"
 		}
 		if i == d.cursor {
-			lines = append(lines, th.PadHighlight(plain, width))
+			lines = append(lines, th.PadHighlight(text, width))
 		} else {
-			lines = append(lines, th.FG256(th.Muted, plain))
+			lines = append(lines, th.FG256(th.Muted, text))
 		}
 	}
 	lines = append(lines, frameRule(th, width))

internal/tui/render.go

@@ -118,6 +118,25 @@ func truncateToWidth(s string, cols int) string {
 		}
 		rw := runewidthRune(r)
 		if seen+rw > cols {
+			// Flush any trailing ANSI escapes (resets, erase-to-EOL)
+			// so background colors and cleanup sequences survive.
+			for i < len(runes) {
+				if runes[i] == 0x1b && i+1 < len(runes) && runes[i+1] == '[' {
+					out.WriteRune(runes[i])
+					out.WriteRune(runes[i+1])
+					i += 2
+					for i < len(runes) {
+						c := runes[i]
+						out.WriteRune(c)
+						i++
+						if c >= 0x40 && c <= 0x7e {
+							break
+						}
+					}
+				} else {
+					break
+				}
+			}
 			break
 		}
 		out.WriteRune(r)

internal/tui/theme.go

@@ -72,7 +72,10 @@ func (t Theme) PadHighlight(s string, width int) string {
 	if visible < width {
 		s += strings.Repeat(" ", width-visible)
 	}
-	return sgrFG(t.SelectionFG) + sgrBG(t.SelectionBG) + s + reset
+	// Emit the background color AFTER the reset via a trailing
+	// erase-to-end-of-line so the highlight extends to the terminal
+	// edge even if the cell count is slightly off.
+	return sgrFG(t.SelectionFG) + sgrBG(t.SelectionBG) + s + "\x1b[K" + reset
 }
 
 // Bold wraps s in bold SGR.