T38: inside herdr, which passes no OSC 7501 on, herdr's agents in a state it knows are the session's records, one a pane, their app, title and message from herdr's fields; a snapshot that lists other agents replaces them whole, and they go when herdr leaves the foreground

tasks/acceptance.md

@@ -56,6 +56,7 @@ What no check reached: no real KWin drew the blur; of Wayland desktops, only Hyp
 | Program status, OSC 7501 revision 0.4: reports checked as the spec checks them, records per terminal, a new prompt and a full reset, the support query | T36 | `term::status` tests: the spec's examples read as it means them; a malformed pair is skipped, the last of a key wins, unknown keys pass; a sequence over any limit, with bad base64, UTF-8 or a control character, or without a known state drops whole, a clear too, and an earlier pair of a key counts though the last wins; the sequence's length counts the controls its body skips; kind and progress count only with their states; records replace whole, clear with those under them, and past 256 the one updated longest ago goes; a new prompt keeps done and error alone. `term::tap`: a full reset found between bodies, and through DEL and high bytes in its escape. `term::pty`: a report, a query and a full reset reach the session in order through the event loop. In the app on macOS, a program that sent the query and then DA1 read the answer with every state and kind, then DA1's | Pass |
 | Progress, OSC 9;4, as the root record until an OSC 7501 report; notifications, OSC 9, 777 and 99, read | T37 | `term::notify` tests: OSC 9 reads as Ghostty reads it, ConEmu's commands no notifications, 9;4's progress clamped; OSC 777's notify; OSC 99 gathers chunks by id, base64 split before encoding or after and a character across chunks among them, keeps the newlines base64 carries, reads options, close, query and alive, and drops what breaks its rules with what it gathered; its answers name the asker's id. `term::tap`: an OSC 99 body keeps its metadata and a full payload. `term::status`: 9;4 maps to the root record until a report, and again after a full reset. `term::pty`: OSC 9, 777, chunked 99 and 9;4 reach the session in order, and a full encoded chunk with the lines base64 carries reaches it as one notification. In the app on macOS, a program read OSC 99's query and alive answers before DA1's, and four notifications reached the workspace's log | Pass |
 | Inside herdr, the folder of herdr's focused pane, read from its socket, on macOS, Linux and Windows | T29, T32 | `term::herdr` tests: the socket found as herdr 0.9 finds it, only the terminal client followed and a remote one refused, the snapshot read, a socket round trip, a process's path, arguments and variables; `the_foreground_is_the_program_s_own_group`; on X11 with herdr 0.9.5 run in the session: its start showed the focused pane's folder, a cd in the pane moved the panel, the focus moved to a pane in `/etc` and back moved it each time, and the client's end gave the panel back to bash's report, then `exec herdr` from that bash, with `HERDR_SOCKET_PATH` relative to its folder, was followed through the socket there; on macOS under `shot`, herdr 0.9.5 as the program and again by `exec` from `sh` with a relative socket, its pane's cd moved the panel; on Windows, `term::herdr` tests on the CI runner: the folder under `APPDATA` and `USERPROFILE`, the `herdr.exe` nearest under the shell, this test's name, arguments and variables read through the live process list and `sysinfo`, a round trip over a named pipe; no real herdr has run on Windows yet | Partial |
+| Inside herdr, herdr's agent states are the session's records | T38 | `term::herdr` tests: each agent in a state herdr knows is its pane's record, its app, title and message from herdr's fields, unknown and new states passed by, and a snapshot without agents lists none. `term::status`: herdr's agents replace their own records alone, the same agents change nothing, and the next snapshot puts them back after a full reset | Pass |
 | Colors, styles, five underlines, wide characters, combining marks | T06 | `term::frame`, `term::ink`, `term::paint` tests | Pass |
 | Box drawing, blocks and powerline shapes as geometry | T07 | `term::boxes` tests | Pass |
 | JetBrains Mono, any installed font, Nerd Font icons | T06, T17 | `tests/fonts.rs` | Pass |