…oto fallbacks

Extract spawn_parts from spawn_resolved's tail so the detach-spawn
sequence lives in one place. Route both spawn_resolved and
open_in_editor_at through it, eliminating the duplicate implementation
introduced in c446025. Add a test proving {file}/{line} substitute
when they appear in separate argv tokens.

…val test

Add `ChronologyConfig` / `ChronologyOverride` / `WidthSpec` / `Side`
types in `src/config/chronology.rs` with per-field merge, `sanitize()`
clamping, and `resolved_width()`.  Wire the `repos.chronology_config`
TEXT column via schema migration v13, a new `set_repo_chronology_config`
setter, and an updated SELECT in `repos()` (indices 0-12).  Sweep all
`Repo { .. }` struct literals to add `chronology_config: None`.

…ntry rects per frame

…nd/open editor

…modal

Adds a ChronologyConfig variant to RepoSettingField (after DetailBarConfig)
and wires it through every site the detail-bar config uses: the ALL array,
label(), the editor-seed getter (reads repo.chronology_config), the modal
row list, and apply_repo_setting. The apply arm validates the edited JSON as
ChronologyOverride (the partial per-repo override type, mirroring how the
detail-bar arm validates DetailBarOverride rather than the full config) and
persists via store.set_repo_chronology_config, passing None when empty.

Also adds a config test proving the per-repo override flows through resolve()
when the global config is unset (side override -> Side::Left, other fields
stay at global defaults).

The chronology bar's scroll offset and expanded-entry index persisted across
focused-workspace switches, so they could point at an entry belonging to an
unrelated workspace. Adds a chronology_last_workspace sentinel to App and a
reset_chronology_state_on_workspace_change helper that zeroes the scroll and
clears the expanded index when the focused workspace id changes, called in the
attached renderer just before those fields are read. Mirrors the existing
detail-bar reset_detail_scroll_on_workspace_change pattern.

…impls)

- Remove the redundant trailing `return;` at the end of the chronology-click
  if/else-if chain in app/input.rs: the chain is the last statement in the
  mouse-down arm, so the early return was a no-op (control flow unchanged).
- Replace the manual `impl Default for Side` with `#[derive(Default)]` plus
  `#[default]` on the Right variant. Side::Right stays the default and the
  serde `rename_all = "lowercase"` is preserved.

…oll)

…dering

…nt in bar rendering

…orks

Adds a `path` parameter to `resolve_editor_at_argv` and substitutes
`{path}` (the worktree) across all tokens before the `{file}`/`{line}`
logic, so a command like `xdg-terminal-exec --dir={path} nvim` works
for the chronology bar's open-at-line action as well as the dir-open
action. Updates all 12 existing call sites and adds 2 new tests.
README updated to document `{path}` substitution for this action.

…ot old

… -blank)

…ad_full_change)

Add ChangeSource back-reference on ChangeEvent (session_file, line_index,
index_in_line), thread detail_max through extract_change_events so clip
is parameterised, populate source in parse_file, and expose
load_full_change for on-demand unclipped re-extraction from the session
log. Fix all ChangeEvent literals and extract_change_events call-sites
across the codebase to compile cleanly.

…e to open)

…truncated

…targets)