Export findings as markdown (Ctrl+E), and the journal that makes it true

The output of an RE session is what you worked out, and it was locked in a
.i64 that only IDA can read. Ctrl+E (or `drive export`, or the `export` RPC
verb) writes it out: your comments grouped by function with the line each
annotates, the names and prototypes you set, the types you declared.

**The hard part was provenance, and it needed a mechanism, not a filter.**
A database does not record WHO wrote a comment or a name. IDA's analyzer
sets `; switch 73 cases` and `; s1` with the same `set_cmt` a person uses,
and the ELF loader sets `elf_gnu_hash_nbuckets` and `File class: 64-bit`
the same way. Four probes, all negative: the FF_COMM flag is identical,
`get_cmt` returns them all, `generate_disasm_line` tags every one of them
COLOR_REGCMT (not COLOR_AUTOCMT), and they survive with auto-comments
switched off. A first cut filtered by shape and produced a report whose
first screen was ELF header trivia and `; jumptable ... case 99`.

So idatui journals its own edits (idatui/journal.py) into a netnode in the
database: it rides along in the .i64, it is still there next session, and
the report is then exactly what was done here -- 2 findings out of a
database carrying 693 other annotations. Recorded at the choke points in
edit_ctl (rename, name-address, comment, retype) and in the struct editor;
flushed on save, on export and on quit, so no edit pays a round trip.

Without a journal (a database worked on in the IDA GUI, or predating this)
the report falls back to filtering by shape -- dummy names, imports, loader
segments, the analyzer's stereotyped switch/jumptable strings -- and says
so in the document rather than claiming authorship it cannot prove.

idatui/findings.py splits gather (needs IDA) from render (does not), so the
formatting, grouping, sorting, escaping and the empty cases are tested
offline: tests/test_findings.py, 32 checks, no worker, 0.1s. The pilot
scenario covers the round trip that matters -- edit through the UI, export,
find it in the file, and reload the journal from the .i64.

Full suite: 842 passed, 0 failed, 51.2s.

1 files changed, 82 insertions, 0 deletions

diff --git a/tests/test_scenarios.py b/tests/test_scenarios.py
index 6c3177a..0b004b3 100644
--- a/tests/test_scenarios.py
+++ b/tests/test_scenarios.py
@@ -1093,6 +1093,88 @@ async def s_structs(c: Ctx):
     c.check("Esc closes the struct editor", not isinstance(app.screen, StructEditor))
 
 
+@scenario("export_findings")
+async def s_export_findings(c: Ctx):
+    """Ctrl+E writes a markdown report of what this session worked out.
+
+    Deliberately end-to-end: the interesting failure is not the formatting (that
+    is covered offline in test_findings.py) but whether a comment and a rename
+    made through the UI come back out of the database and into the file.
+    """
+    import tempfile
+
+    from idatui.findings import default_path
+
+    app = c.app
+    fn = c.biggest()
+    tag = os.getpid()
+    newname, note = f"exp_{tag}", f"found_it_{tag}"
+    old = fn.name
+    await c.open(fn.addr, "listing")
+
+    # Make something to find: a rename and a comment, through the real paths.
+    app.program.client.invoke(
+        "rename", batch={"func": {"addr": hex(fn.addr), "name": newname}})
+    app.program.bump_names()
+    app.program.set_comment(fn.addr, note)
+    app.program.invalidate(fn.addr)
+    # ...and tell the journal, exactly as the edit controller would. The
+    # database cannot say who wrote a comment (IDA's own analyzer uses the same
+    # call), so the journal is what makes this MY finding rather than noise.
+    app.journal.record("rename", fn.addr, f"{old} → {newname}")
+    app.journal.record("comment", fn.addr, note)
+
+    out = os.path.join(tempfile.gettempdir(), f"idatui-findings-{tag}.md")
+    try:
+        await c.press("ctrl+e")
+        inp = app.query_one("#export", Input)
+        opened = await c.wait(lambda: inp.display, 5)
+        c.check("Ctrl+E opens the export prompt", opened, f"display={inp.display}")
+        c.check("the prompt is prefilled with a path beside the binary",
+                inp.value == default_path(app._open_path), f"value={inp.value!r}")
+        inp.value = out
+        await c.press("enter")
+        written = await c.wait(lambda: os.path.exists(out), 30)
+        c.check("Enter writes the report", written, f"no {out}")
+        if not written:
+            return
+        doc = open(out, encoding="utf-8").read()
+        c.check("the report is markdown with the expected sections",
+                doc.startswith("# Findings") and "## Comments" in doc
+                and "## Named functions" in doc, doc[:60])
+        c.check("a comment written this session is in it", note in doc,
+                doc[:200])
+        c.check("and the function it belongs to is named", newname in doc,
+                doc[:200])
+        c.check("the report is sourced from the journal, not a scan",
+                "idatui's edit journal" in doc,
+                [l for l in doc.splitlines() if "**source**" in l])
+        c.check("the analyzer's own comments stay out of it",
+                "switch jump" not in doc and "jumptable" not in doc,
+                [l for l in doc.splitlines() if "switch" in l][:2])
+        c.check("the status line says where it went",
+                out in c.status(), c.status())
+        # The journal has to survive the database, or a report is only ever
+        # about the session that happened to be open.
+        from idatui.journal import Journal
+
+        app.journal.flush(app.program)
+        reloaded = Journal()
+        reloaded.load(app.program)
+        c.check("the journal round-trips through the .i64",
+                fn.addr in reloaded.addresses(),
+                f"{len(reloaded)} entries, {sorted(reloaded.addresses())[:3]}")
+    finally:
+        # Idempotent: hand the database back exactly as we found it.
+        app.program.set_comment(fn.addr, "")
+        app.program.client.invoke(
+            "rename", batch={"func": {"addr": hex(fn.addr), "name": old}})
+        app.program.bump_names()
+        app.program.invalidate(fn.addr)
+        if os.path.exists(out):
+            os.remove(out)
+
+
 @scenario("struct_filter")
 async def s_struct_filter(c: Ctx):
     app = c.app