v1.5.1

The keybinding UX pass. v1.5.0 shipped Helm; v1.5.1 steps back and
collapses the accumulated key-binding choices into one consistent mental
model. Four navigation keys with disjoint meanings:

• Enter = into — the sole drill / focus / commit-popup key
• Space = right-click menu — opens contextual menus, mirror-closes popups
• h/l = panel 3 tab switch — only when panel 3 is active
• Esc = back — pop drill frame / close popup (LIFO)

Trigger letters (Y/E/S/D/N/C) are uppercase so they require
Shift — the modifier exists to prevent accidental key presses, not to
signal danger. The mental-model anchor is a desktop GUI analogue: Enter
= double-click, Space = right-click.

Added

• Per-row context menu on panel 2. Press Space on a regular row
  to open a menu listing YAML(Y) / Edit(E) / Shell(S) / Delete(D).
  Items are resource-aware: Shell is hidden for resources without
  containers (Service / ConfigMap / Secret / ...). Items can be committed
  via cursor + Enter or by hitting the letter directly while the menu
  is open. Trigger closes the menu either way — three paths (direct
  hotkey at row / menu + cursor / menu + hotkey) reach the same final
  state.
• Rule A read-only — Helm-managed Delete. Pressing D on a Helm-
  managed K8s resource (label app.kubernetes.io/managed-by=Helm or
  annotation meta.helm.sh/release-name) now surfaces a "Helm-managed
  (read-only)" toast and refuses, matching E edit. Closes the v1.5.0
  leak where D skipped the guard.
• z toggle expand panel. Single key toggles the focused panel
  (table or detail) between expanded and normal — replaces the
  =/- pair, which were ergonomically awkward (different keys for
  open vs close).

Changed

• Trigger letters uppercase across the board. e → E (edit),
  s → S (shell). Aligns with D/Y/N/C and the Shift = anti-
  accidental modifier rule. Also affects the YAML popup's edit hotkey
  (now E).
• n/c lowercase aliases removed. Namespace / context pickers
  only respond to N / C now — the lowercase aliases were a leak
  in the Shift = intentional rule.
• h/l purely panel 3 tab switch. Previously h/l switched
  the panel 3 tab while panel 2 was focused; now they only fire when
  panel 3 is the active panel. Panel 2 = pure list (cursor + Enter +
  Space). Panel 3 = tab navigation (h/l).
• l retired as a drill key. Enter is now the sole drill / focus-
  next-panel key throughout km8 (sidebar l/Enter → Enter only;
  Relatives tab Enter/l → Enter only).
• h retired as drill-frame pop. Esc was always an alias; now
  it's the only key for back-out.
• b key retired. The breadcrumb popup is now reachable via
  Space on the Relatives tab — folds into the universal "Space =
  open menu" rule. The [b]readcrumbs panel-border hint is removed.
• Breadcrumb popup: Enter commits, Space closes. Inside the
  popup, Enter now commits the cursor row as a panel 1+2 switch
  (replaces the old jump-to-drill-level behavior). Space mirrors
  open and closes the popup without committing.
• Any menu popup: Space = close (mirror open). Breadcrumb popup,
  Helm doc menu, per-row context menu — uniform rule. Confirm dialogs
  already accepted Space as cancel; behavior unchanged.
• Status line trimmed. Now shows only ? / q / N / C /
  space / enter — plus / filter when panel 1/2 is active
  (hidden on panel 3 since in-panel search was retired in v1.5.0).
  Trigger letters (Y/E/S/D) live in the per-row context menu
  instead of being duplicated on the status bar.
• Help popup (?) rewritten as the single source of truth for the
  full key map under the new mental model.

Mental model summary

Key	Meaning
Enter	Into — drill / focus next / commit popup
Space	Right-click menu — open context menu / mirror-close popup
h/l	Tab switch (panel 3 active only)
Esc	Back — pop drill / close popup
Y/E/S/D/N/C	Triggers, uppercase = needs Shift = anti-accidental
j/k/u/d/gg/G	Vim navigation (unchanged baseline)

Fixed

• Table cell truncation no longer slices UTF-8 mid-codepoint. The
  table renderer used byte-length truncation (val[:w-1]), which broke
  any multi-byte cell whose byte count exceeded the column width — the
  Nerd Font helm glyph (3 bytes / 1 cell) rendered as ◇◇ in a 2-cell
  column. Now uses visual-width truncation via ansi.Truncate +
  lipgloss.Width, so any multi-byte content survives narrow columns
  intact.
• Pod STATUS color column-index lookup is dynamic. The hard-coded
  colIdx == 2 check broke when the helm-marker column was inserted at
  index 1; STATUS color stopped applying. Status column lookup is now
  by column title, not position.

Changed (polish)

• Helm-managed visibility defaults to shown. Previously hidden by
  default with the rationale that helm objects are "noise" on a scout
  workflow. Reverted — the cluster's actual contents should be the
  default surface. . on any non-Releases panel 2 list toggles hide.
• Helm marker column on every resource type. A dedicated unlabeled
  column right after Name shows the `` (Nerd Font nf-dev-helm) glyph
  on helm-managed rows, blank otherwise. Same glyph used for popup
  title icons. Previously only Secrets list filtered helm storage blobs;
  this universalizes the visual signal across all 26 resource types.
• Panel 2 bottom-left always shows the .: toggle helm hotkey hint.
  Previously the chip only appeared when helm filter was off, as a
  state indicator. Now it's a permanent hotkey advert (Releases panel
  is the only exception — toggle is a no-op there).
• Space closes every popup uniformly. YAML popup, Help popup, App
  log popup, Splash screen all now accept Space to close, matching
  the universal "Space mirror-closes the popup that opened" rule from
  the v1.5.1 mental model.
• README rewritten around zero-learning-curve framing. Three keys
  (Enter / Space / Esc) cover the primary interaction; layout
  navigation (1/2/3, h/l) and accelerators (Y/E/S/D/...)
  are framed as optional. Honest about where Space works vs not
  (sidebar has no per-row menu — every row is itself a navigation
  target).

Demo

• 5 demo gifs re-recorded against the v1.5.1 mental model:
  demo-basics (three-key tour + Space menu → Y → YAML),
  demo-relatives (chain drill + Space breadcrumb popup + confirm
  switch), demo-yaml-edit (Space menu → Edit → confirm → vim, the
  v1.5.1-correct path to kubectl edit), demo-helm (new — Space
  doc menu → Manifest YAML popup), demo-km8erm (two scale cycles
  showing hide/show persistence).