Switch from working-with-tmux to working-with-zmx for persistent
terminal session management. Update README entry accordingly.

git-subtree-dir: vendor/impeccable
git-subtree-split: 00d485659af82982aef0328d0419c49a2716d123

Details plugin paths, symlinking, and munin-node-configure usage.

Vendor alxxpersonal/forge as a git subtree under vendor/forge/, symlink
the 14 charm-* skills into skills/, and add:

- vendor/sources: tab-separated manifest of vendored repos
- scripts/vendor-update.fish: pulls updates for all or named vendors

git-subtree-dir: vendor/forge
git-subtree-split: ad59e044d14eeee1b37d4dd6d237d3dfca5f246b

Explicitly note that rumilo is amnesic and each invocation starts fresh,
so later queries that depend on earlier answers must include that
context. Also mention parallel execution for independent queries.

Add guidance on extracting command output from remote shells using
prompt patterns and random anchors. Include section on parallel work
with multiple tmux windows for concurrent tasks. Update summary pattern
to reference anchor filtering.

Refactor to detect commit style from recent history and support both
Conventional Commits and kernel-style formats. Add format script for
kernel-style message formatting. Update description to reflect broader
scope beyond just git.

Improve instructions for generating session IDs and naming windows.
Remove markdown bold from section headers. Add warning about excessive
tokens from full scrollback capture.

Add paragraph about agents undertriggering and the importance of
generous trigger contexts. Add tip about explaining reasoning rather
than relying on bare directives when overriding default behaviour.

Add ideating-with-bdd for collaborative discovery and formulation of
behaviour. Update testing-with-gocuke-and-gherkin to focus on
automation.

Separates concerns:
- ideating-with-bdd: Discovery, brainstorming, requirements gathering
- testing-with-gocuke-and-gherkin: Automation, running tests, TDD

Change all skills authored by Amolith from AGPL-3.0-or-later to
GPL-3.0-or-later.

Affected skills:
- auditing-repositories
- authoring-skills
- collaborating-through-pr-pico-sh
- creating-tasks-through-lunatask
- formatting-commits
- frontend-accessibility
- handling-customer-data
- invoking-subagents
- managing-and-navigating-worktrees
- researching-with-rumilo
- resuming-work-through-lunatask
- reviewing-code
- scripting-with-go
- writing-git-tags
- writing-roc-lang
- writing-rust

Document X-At and X-In headers for delayed notifications with examples
for both duration-based (X-In) and absolute time (X-At) scheduling.