📝 docs: add tmux session keyshort cards and Q pages

Adds Keyshort card pages for C-b s and C-b $ under tmux/Keyshort/Session,
plus card-backed question entity pages under tmux/Session/Q for SRS review.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: codekiln

journals/2026_06_16.md

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+- # [[Filed]]
+	- [[tmux/Keyshort/Session/Choose a Session from a List]]
+	- [[tmux/Keyshort/Session/Rename Current Session]]
+	- [[tmux/Session/Q/What is the shortcut to choose a session from a list?]]
+	- [[tmux/Session/Q/What is the shortcut to rename the current session?]]

pages/tmux___Keyshort___Session___Choose a Session from a List.md

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+- [[Keyshort]] [[tmux]] [[tmux/Keyshort]] [[tmux/Keyshort/Session]]
+	- **Choose a Session from a List** [[Card]]
+		- Shortcut: `<prefix> s` [[Keyshort/Default]]
+		- Description: Opens an interactive tree of sessions and windows; navigate with arrow keys and press Enter to switch.

pages/tmux___Keyshort___Session___Rename Current Session.md

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+- [[Keyshort]] [[tmux]] [[tmux/Keyshort]] [[tmux/Keyshort/Session]]
+	- **Rename Current Session** [[Card]]
+		- Shortcut: `<prefix> $` [[Keyshort/Default]]
+		- Description: Prompts for a new name for the current [[tmux/session]].

pages/tmux___Session___Q___What is the shortcut to choose a session from a list%3F.md

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+logseq-entity:: [[Logseq/Entity/Question]], [[Logseq/Entity/Card]]
+
+- # What is the [[tmux]] shortcut to choose a session from a list? [[card]]
+	- [[tmux/Keyshort/Prefix]] `s`

pages/tmux___Session___Q___What is the shortcut to rename the current session%3F.md

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+logseq-entity:: [[Logseq/Entity/Question]], [[Logseq/Entity/Card]]
+
+- # What is the [[tmux]] shortcut to rename the current session? [[card]]
+	- [[tmux/Keyshort/Prefix]] `$`