prompt now display contextual infos

doc/profile.conf.example

@@ -171,6 +171,24 @@ TERM=xterm-256color
 #
 # Working directory
 #PROMPT_COLOR_DIR_FG=$ICyan
+#
+# Context segment (Git branch / Conda environment) on the top bar
+#PROMPT_COLOR_CTX_FG=$BIYellow
+#
+# Show Git branch at the end of the top bar when inside a repository.
+#PROMPT_SHOW_GIT=1
+#
+# Include Git dirty marker and upstream drift (+ahead/-behind) in the context.
+#PROMPT_SHOW_GIT_STATUS=1
+#
+# Show Conda environment name at the end of the top bar when active.
+#PROMPT_SHOW_CONDA=1
+#
+# Show Python venv name when active (ignored if Conda is active).
+#PROMPT_SHOW_VENV=1
+#
+# Show session markers (ssh, tmux, screen) when applicable.
+#PROMPT_SHOW_SESSION=1
 
 # ==============================================================================
 [pwd]

doc/todo.md

@@ -20,11 +20,14 @@ version-bump.
 
 ## Prompt & theming
 
-- [ ] **Git branch in prompt** — show the current branch name (and dirty
-  indicator) in the PS1 bar when inside a Git repository. Should be
-  gated behind a `[prompt]` config key so it can be disabled. **[medium]**
-- [ ] **Virtual-env / conda indicator** — detect `$VIRTUAL_ENV` / `$CONDA_DEFAULT_ENV`
-  and display the name in the prompt bar. **[easy]**
+- [x] **Git branch in prompt** — show the current branch name (with dirty and
+  upstream drift indicators) in the PS1 bar when inside a Git repository,
+  gated by `[prompt]` config keys. **[medium]**
+- [x] **Virtual-env / conda indicator** — detect `$VIRTUAL_ENV` / `$CONDA_DEFAULT_ENV`
+  and display the active environment in the prompt bar. **[easy]**
+- [x] **Session context markers** — display lightweight session markers
+  (`ssh`, `tmux`, `screen`) at the end of the prompt bar, gated by
+  `[prompt]` config keys. **[easy]**
 - [ ] **True-colour terminal auto-detection** — query `$COLORTERM` and
   `$TERM` at load time; automatically fall back from a 24-bit theme to its
   16-colour equivalent when the terminal does not support true colour. **[medium]**